{"title":"Clamp Accessories","description":null,"products":[{"product_id":"1-4-20-flat-head-screw-3-4-inch","title":"1\/4-20 x 3\/4\" Socket Flat Head Screw | 5\/32\" Hex Drive Countersunk Hardware","description":"\u003c!-- ===================== GRAY BANNER ===================== --\u003e \n\u003cdiv style=\"background:#e5e5e5;padding:12px 15px;margin-bottom:18px;\"\u003e \n    \u003cstrong\u003eHejnar Photo Premium 1\/4-20 x 3\/4\" Socket Flat Head Screw – 5\/32\" Hex Socket Head\u003c\/strong\u003e \n\u003c\/div\u003e \n\n\u003c!-- ===================== SEO BLOCK (TOP) ===================== --\u003e \n\u003ch1\u003e1\/4-20 x 3\/4\" Socket Flat Head Screw | 5\/32\" Hex Drive Countersunk Hardware\u003c\/h1\u003e \n\u003cp\u003e\n    The \u003cstrong\u003eHejnar Photo 1\/4-20 x 3\/4\" Socket Flat Head Screw\u003c\/strong\u003e is a professional-grade, high-tensile structural fastener custom-engineered for premium camera support systems, quick-release base plates, conversion blocks, and multi-axis macro gear. Featuring a precise countersunk profile and a low-profile \u003cstrong\u003e5\/32\" hex socket drive head\u003c\/strong\u003e, this premium fastener is designed to sit completely flush within matching beveled holes. It creates an unyielding physical connection that eliminates mechanical play and ensures absolute equipment security on professional tripods, slider platforms, and gimbal rigs.\n\u003c\/p\u003e \n\u003chr\u003e \n\n\u003c!-- ===================== QUICK OVERVIEW \u0026 KEY FEATURES ===================== --\u003e \n\u003ch2\u003eQuick Overview \u0026amp; Key Features\u003c\/h2\u003e \n\u003cul\u003e \n    \u003cli\u003e\n\u003cstrong\u003eStandard 1\/4-20 Threading:\u003c\/strong\u003e Universal coarse thread size standard across the photography and optical industries, matching standard tripod sockets, camera base chassis, and plate receivers.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eFlush-Fit Countersunk Head:\u003c\/strong\u003e Flat head design seats perfectly inside beveled counterbored plate slots, creating a seamless surface that won't scratch mating plates or catch on tripod clamps.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eExtended 3\/4\" Overall Length:\u003c\/strong\u003e 0.75-inch shank dimension engineered to provide deep, maximum-security thread engagement across thick-walled technical assemblies and heavy-duty component joints.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003e5\/32\" Internal Hex Socket Drive:\u003c\/strong\u003e Deep, precision-milled hex well accommodates standard 5\/32\" Allen keys, letting you apply high tightening torque without slipping or stripping.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eHigh-Tensile Steel Build:\u003c\/strong\u003e Forged from premium-grade alloy steel to handle intense mechanical leverage, rotational weight forces, and severe outdoor field tracking.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eMade in the USA:\u003c\/strong\u003e Precision-manufactured to rigid engineering tolerances to ensure lifelong structural reliability in the studio or laboratory.\u003c\/li\u003e \n\u003c\/ul\u003e \n\n\u003c!-- ===================== TECHNICAL SPECIFICATIONS ===================== --\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 1\/4\"-20 (Standard Photo Coarse Thread)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOverall Screw Length:\u003c\/strong\u003e 3\/4 inch (0.75 inches)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHead Type:\u003c\/strong\u003e Socket Flat Head \/ Countersunk\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDrive System:\u003c\/strong\u003e 5\/32\" Internal Hex Socket\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMaterial Construction:\u003c\/strong\u003e High-Strength Structural Steel Alloy\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication Profiles:\u003c\/strong\u003e Thicker camera base plates, custom lens feet conversion blocks, panoramic rail joints, and heavy-duty gear assembly modules\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- ===================== PRODUCT DESCRIPTION ===================== --\u003e \n\u003ch2\u003eProduct Description\u003c\/h2\u003e \n\u003cp\u003e \n    The premium \u003cstrong\u003eHejnar Photo 1\/4-20 x 3\/4\" Socket Flat Head Screw\u003c\/strong\u003e is an indispensable hardware asset for landscape, studio, macro, and technical photographers who assemble, modify, or maintain high-end modular support setups. Because tracking heavy camera configurations puts continuous structural stress and vibration on your component joints, generic or low-grade screws can shear or loosen over time. This heavy-duty structural fastener resolves that vulnerability entirely, delivering a completely rigid connection that dampens micro-vibrations and keeps multi-row pano arms or sliding plate blocks tightly grouped together.\n\u003c\/p\u003e \n\u003cp\u003e \n    The definitive mechanical advantage of this specific model is its flat, beveled head geometry paired with an extended 3\/4-inch length. When driven into a matching countersunk tracking track, the head merges perfectly with the plane of your equipment plate. This flat interface is crucial for modular camera gear because it allows secondary plates, clamps, or rails to slide or mount directly over the screw zone without hitting an obstacle, while the longer thread profile ensures an extra safety margin of structural connection inside deep-bored receivers. \n\u003c\/p\u003e \n\u003cp\u003e \n    Engineered for high-performance pacing in demanding environments, the screw features a precision-milled \u003cstrong\u003e5\/32\" internal hex drive well\u003c\/strong\u003e. Unlike standard slotted flat screws that easily strip or scratch surrounding metal when turned with a flat screwdriver or coin, this hex drive socket guarantees clean tool engagement. It gives you the necessary physical leverage to tighten the hardware firmly to its target axis with smooth, manual feedback. Rust-proofed and milled in the USA to elite structural standards, this 1\/4-20 flat head screw keeps your precision optics safely and accurately aligned on every assignment.\n\u003c\/p\u003e","brand":"Hejnar Photo","offers":[{"title":"Default Title","offer_id":67701589377129,"sku":"1-4-20_3-4-SFH","price":2.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/1278\/9353\/files\/1-4-20_3-4-SFH-2.jpg?v=1792110599"},{"product_id":"stainless-steel-flanged-reducer-bushing-3-8-to-1-4","title":"Stainless Steel Reducer Bushing with Flange","description":"\u003c!-- Gray Banner Header --\u003e\n\u003cdiv style=\"background:#e5e5e5; padding:12px 15px; margin-bottom:18px;\"\u003e \n    \u003cstrong\u003eStainless Steel Reducer Bushing with Flange | 3\/8-16 to 1\/4-20 Thread Adapter\u003c\/strong\u003e \n\u003c\/div\u003e\n\n\u003c!-- Main Product Title \u0026 Overview --\u003e\n\u003ch1\u003eStainless Steel Reducer Bushing with Flange\u003c\/h1\u003e\n\u003cp\u003e\n    This precision-machined \u003cstrong\u003estainless steel reducer bushing\u003c\/strong\u003e is an essential hardware component designed to reduce a 3\/8-16 thread size down to a 1\/4-20 thread size. Featuring a specialized \u003cstrong\u003eintegrated flange\u003c\/strong\u003e, this adapter ensures a secure and stable connection when mounting Arca-Swiss compatible clamps onto standard rails or tripods.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003c!-- Key Features Section --\u003e\n\u003ch2\u003eQuick Overview \u0026amp; Key Features\u003c\/h2\u003e\n\u003cul\u003e \n    \u003cli\u003e\n\u003cstrong\u003ePrecision Thread Conversion:\u003c\/strong\u003e Efficiently adapts a 3\/8-16 female thread to accept a standard 1\/4-20 male screw, ensuring compatibility across various photography gear.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIntegrated Flange Design:\u003c\/strong\u003e Specifically engineered for use with quick-release clamps and clamp sets to provide a broader support base and prevent over-threading.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Ideal for use on tripods, monopods, and clamps from various major manufacturers including RRS, Kirk, and Wimberley.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eModular System Integration:\u003c\/strong\u003e Facilitates mounting clamps onto standard rails using captive screws, serving as a critical component in advanced camera support setups.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Crafted from high-quality stainless steel for maximum strength, corrosion resistance, and long-term reliability.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eMade in the USA:\u003c\/strong\u003e Manufactured to professional standards for a perfect, precision fit.\u003c\/li\u003e \n\u003c\/ul\u003e\n\n\u003c!-- Detailed Description --\u003e\n\u003ch2\u003eProfessional Thread Adaptation \u0026amp; Stability\u003c\/h2\u003e \n\u003cp\u003e \n    The \u003cstrong\u003eStainless Steel Reducer Bushing with Flange\u003c\/strong\u003e is a \"must-have\" accessory for photographers upgrading their equipment to professional Arca-Swiss standards. While standard bushings often lack the necessary surface area for larger clamps, the flanged design of this adapter provides enhanced stability for professional-style heads and plates.\n\u003c\/p\u003e \n\u003cp\u003e \n    \u003cstrong\u003eAdvanced Compatibility Note:\u003c\/strong\u003e This regular flanged bushing is optimized for standard hardware lengths. If your mounting system utilizes shorter screws or screws with only a few available threads, you may require an \u003cstrong\u003eextended bushing\u003c\/strong\u003e to ensure a safe and secure connection. Always verify your screw length prior to assembly to maintain the structural integrity of your camera support rig.\n\u003c\/p\u003e\n\n\u003c!-- Technical Specifications --\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e \n\u003cul\u003e \n    \u003cli\u003e\n\u003cstrong\u003eThread Reduction:\u003c\/strong\u003e 3\/8\"-16 (Male) to 1\/4\"-20 (Female)\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eBushing Length:\u003c\/strong\u003e 0.40\"\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFlange Diameter:\u003c\/strong\u003e 0.5\"\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFlange Thickness:\u003c\/strong\u003e 0.05\"\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e CNC Machined Stainless Steel\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Machined Stainless Steel\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hejnar Photo","offers":[{"title":"Default Title","offer_id":67701590065257,"sku":"Bushing-with-Flange","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/1278\/9353\/files\/Bushing-with-Flange-2.jpg?v=1792110649"},{"product_id":"arca-swiss-clamp-adapter-orientation-switch","title":"Arca-Swiss Compatible Clamp Adapter","description":"\u003c!-- ===================== GRAY BANNER ===================== --\u003e \n\u003cdiv style=\"background:#e5e5e5; padding:12px 15px; margin-bottom:18px;\"\u003e \n    \u003cstrong\u003eArca-Swiss Compatible Clamp Adapter | Quick Orientation Switching Solution\u003c\/strong\u003e \n\u003c\/div\u003e \n\n\u003c!-- ===================== MAIN HEADER ===================== --\u003e \n\u003ch1\u003eArca-Swiss Compatible Clamp Adapter\u003c\/h1\u003e \n\u003cp\u003e \n    The \u003cstrong\u003eClamp Adapter\u003c\/strong\u003e is a precision-engineered hardware solution designed to provide maximum flexibility for your camera support system. This adapter allows you to switch your setup orientation almost instantly, making it an essential component for photographers who need to transition between landscape and portrait or change rail directions without disassembling their entire rig.\n\u003c\/p\u003e \n\n\u003chr\u003e \n\n\u003c!-- ===================== QUICK OVERVIEW ===================== --\u003e \n\u003ch2\u003eQuick Overview \u0026amp; Key Features\u003c\/h2\u003e \n\u003cul\u003e \n    \u003cli\u003e\n\u003cstrong\u003eUniversal Versatility:\u003c\/strong\u003e Designed to mount seamlessly to all standard clamps featuring a center slot, providing a modular bridge for your quick-release system.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eRapid Orientation Switching:\u003c\/strong\u003e Specifically engineered to let you rotate or switch your gear configuration quickly, saving time during technical shoots.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003ePrecision Compatibility:\u003c\/strong\u003e Fits any clamp equipped with a center slot wider than 0.207 inches (5.25mm). Please verify your specific clamp dimensions for a perfect fit.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eRock-Solid Stability:\u003c\/strong\u003e Designed for high rigidity to ensure your gear remains perfectly aligned and twist-free during use.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003ePremium Construction:\u003c\/strong\u003e Precision CNC-machined from solid 6061-T6 aircraft-grade aluminum for professional-grade durability.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eDurable Finish:\u003c\/strong\u003e Features a black hard-coat anodized surface for superior scratch and corrosion protection.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eMade in the USA:\u003c\/strong\u003e Manufactured to exacting professional tolerances for lifelong reliability.\u003c\/li\u003e \n\u003c\/ul\u003e \n\n\u003c!-- ===================== PRODUCT DESCRIPTION ===================== --\u003e \n\u003ch2\u003eProfessional Orientation \u0026amp; Setup Flexibility\u003c\/h2\u003e \n\u003cp\u003e \n    The \u003cstrong\u003eClamp Adapter\u003c\/strong\u003e is a highly effective \"problem-solver\" for building modular photography rigs. Whether you are using it on a nodal slide, a macro rail, or a tripod head, this adapter acts as the critical interface that allows for 90-degree adjustments or multi-axis configurations. \n\u003c\/p\u003e \n\u003cp\u003e \n    \u003cstrong\u003eTechnical Integrity and Field Use:\u003c\/strong\u003e Built for the rigors of professional field photography, this adapter is fully compatible with the Arca-Swiss ecosystem, including equipment from major brands like RRS, Kirk, and Leofoto. Its low-profile design ensures that it provides the necessary functionality without adding excessive bulk or weight to your setup.\n\u003c\/p\u003e \n\n\u003c!-- ===================== SPECIFICATIONS ===================== --\u003e \n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e \n\u003cul\u003e \n    \u003cli\u003e\n\u003cstrong\u003eSlot Requirement:\u003c\/strong\u003e Compatible with center slots \u0026gt; 0.207 inches\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e Arca-Swiss Compatible\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e CNC Machined 6061-T6 Aluminum\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black Hard-Coat Anodized\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in the USA\u003c\/li\u003e \n\u003c\/ul\u003e","brand":"Hejnar Photo","offers":[{"title":"Default Title","offer_id":67701592227945,"sku":"Clamp-Adapter","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/1278\/9353\/files\/Clamp-Adapter-2.jpg?v=1792110725"},{"product_id":"arca-swiss-clamp-adapter-peak-design-capture-v3","title":"Arca-Swiss Clamp Adapter for Peak Design Capture Clip V3","description":"\u003c!-- Gray Banner Header --\u003e\n\u003cdiv style=\"background:#e5e5e5; padding:12px 15px; margin-bottom:18px;\"\u003e \n    \u003cstrong\u003eArca-Type Clamp Adapter | Compatible with Peak Design Capture Camera Clip V3\u003c\/strong\u003e \n\u003c\/div\u003e\n\n\u003c!-- Main Product Title \u0026 Overview --\u003e\n\u003ch1\u003eArca-Swiss Clamp Adapter for Peak Design Capture Clip V3\u003c\/h1\u003e\n\u003cp\u003e\n    The \u003cstrong\u003eClamp Adapter for Peak Design Capture Camera Clip V3\u003c\/strong\u003e is a precision-engineered solution that allows you to integrate your Peak Design harness system with professional Arca-type equipment. This adapter provides a secure mounting bridge, letting you switch your setup orientation quickly and move seamlessly between your Capture Clip and Arca-Swiss compatible tripod heads or clamps.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003c!-- Key Features Section --\u003e\n\u003ch2\u003eQuick Overview \u0026amp; Key Features\u003c\/h2\u003e\n\u003cul\u003e \n    \u003cli\u003e\n\u003cstrong\u003eUniversal Arca Compatibility:\u003c\/strong\u003e Specifically designed to allow the Peak Design Capture Clip V3 to be used with standard Arca-type clamps and equipment.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eModular Integration:\u003c\/strong\u003e Can be mounted to various clamps, providing a reliable and stable interface for your camera support rig.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003ePrecision Construction:\u003c\/strong\u003e Expertly CNC-machined from solid 6061-T6 aircraft-grade aluminum for professional durability.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eDurable Finish:\u003c\/strong\u003e Features a black hard-coat anodized surface for superior scratch and corrosion protection.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Lightweight:\u003c\/strong\u003e Maintains a low profile with a 1.5-inch square footprint and 3\/8-inch thickness, adding minimal bulk to your setup.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMade in the USA:\u003c\/strong\u003e Manufactured to exacting professional tolerances for lifelong reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- Detailed Product Description --\u003e\n\u003ch2\u003eSeamless Setup Orientation \u0026amp; Reliability\u003c\/h2\u003e \n\u003cp\u003e \n    Modernize your photography workflow with a \u003cstrong\u003eprofessional Arca-style clamp adapter\u003c\/strong\u003e built for technical flexibility. This adapter acts as the critical bridge for photographers who utilize the Peak Design system but require the precision of an Arca-Swiss standard mount for their tripods or custom rigs. By providing a stable \"sandwich\" interface, it ensures your gear remains perfectly aligned and secure during active field use.\n\u003c\/p\u003e \n\u003cp\u003e \n    \u003cstrong\u003eEngineered for Field Performance:\u003c\/strong\u003e Designed for the rigors of professional photography, this adapter is fully compatible with the broader Arca-Swiss ecosystem, including accessories from major brands such as RRS and Kirk. Whether you are transitioning from a backpack harness to a tripod or building a custom modular camera setup, this adapter provides the structural integrity and precision required for advanced technical photography.\n\u003c\/p\u003e\n\n\u003c!-- Technical Specifications --\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e \n\u003cul\u003e \n    \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 1.5 inch square\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/8 inches\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Peak Design Capture Camera Clip V3\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e CNC Machined 6061-T6 Aluminum\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black Hard-Coat Anodized\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hejnar Photo","offers":[{"title":"Default Title","offer_id":67701592260713,"sku":"Clamp-Adapter-Peak-Design","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/1278\/9353\/files\/Clamp-Adapter-Peak-Design-2.jpg?v=1792110728"},{"product_id":"hyejnsr-photo-spacer-block-1-4-inch-6-35mm","title":"1\/4 Spacer Block (6.35mm)","description":"\u003c!-- Gray Banner Header --\u003e\n\u003cdiv style=\"background:#e5e5e5; padding:12px 15px; margin-bottom:18px;\"\u003e \n    \u003cstrong\u003e1\/4\" Arca-Swiss Compatible Spacer Block (6.35mm) | Professional Rail Clearance Solution\u003c\/strong\u003e \n\u003c\/div\u003e\n\n\u003c!-- Main Product Title \u0026 Overview --\u003e\n\u003ch1\u003e1\/4\" Spacer Block (6.35mm)\u003c\/h1\u003e\n\u003cp\u003e\n    This precision-machined \u003cstrong\u003e1\/4-inch spacer block\u003c\/strong\u003e (6.35mm) is an essential accessory for photographers using complex rail systems. Designed to raise any Arca-Swiss compatible clamp above a nodal or multi-purpose rail, it provides the necessary clearance to ensure your support equipment doesn't interfere with your shot.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003c!-- Quick Overview Section --\u003e\n\u003ch2\u003eQuick Overview \u0026amp; Key Features\u003c\/h2\u003e\n\u003cul\u003e \n    \u003cli\u003e\n\u003cstrong\u003eEnhanced Field of View:\u003c\/strong\u003e Effectively raises your camera and clamp by 1\/4 inch, a critical adjustment when using short lenses to prevent the end of a long rail from becoming visible in your viewfinder.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePrecision Anti-Twist Design:\u003c\/strong\u003e Equipped with two dowel pin holes and includes 5mm dowel pins to ensure a rock-solid, twist-free connection between the clamp and the rail.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Seamlessly integrates with various clamps and nodal rails, including models such as E033, E034, E038, and E039.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eProfessional Safety Engineering:\u003c\/strong\u003e All corners and edges are radiused and fully rounded to prevent accidental injuries or damage to other sensitive gear.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003ePremium Materials:\u003c\/strong\u003e Precision CNC-machined from solid 6061-T6 aircraft-grade aluminum for lifelong durability.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eDurable Finish:\u003c\/strong\u003e Features a black hard-coat anodized surface for superior scratch and corrosion protection.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMade in the USA:\u003c\/strong\u003e Manufactured to professional tolerances for unyielding reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- Detailed Product Description --\u003e\n\u003ch2\u003eEssential Clearance for Short Lens Photography\u003c\/h2\u003e \n\u003cp\u003e \n    The 1\/4\" spacer block is a highly effective \"problem-solver\" for photographers who frequently switch between short and long focal length lenses on the same rail system. When using wide-angle or short lenses, the forward projection of a standard nodal rail can often appear in the bottom of the frame. By \"Raising the clamp just a bit,\" this spacer lifts the camera's optical axis just enough to clear the equipment, ensuring a clean, unobstructed composition.\n\u003c\/p\u003e \n\u003cp\u003e \n    \u003cstrong\u003eTechnical Integrity and Stability:\u003c\/strong\u003e Despite its compact size, this spacer is built for the rigors of professional field use. The inclusion of two dowel pins provides a critical registration point that prevents the clamp from rotating under the weight of heavy camera bodies or during high-torque adjustments. Whether you are building a macro stacking rig or a precise panoramic setup, this spacer provides the structural integrity and precision required for advanced technical work.\n\u003c\/p\u003e\n\n\u003c!-- Technical Specifications --\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e \n\u003cul\u003e \n    \u003cli\u003e\n\u003cstrong\u003eThickness\/Height:\u003c\/strong\u003e 1\/4 Inch (6.35mm)\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 1.00 Inch\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 0.50 Inches\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Two holes with 5mm dowel pins included\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e CNC Machined 6061-T6 Aluminum\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black Anodized\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hejnar Photo","offers":[{"title":"Default Title","offer_id":67701623324777,"sku":"Spacer-Block-1-4","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/1278\/9353\/files\/Clamp_Spacer.jpg?v=1793755730"},{"product_id":"hejnar-photo-11mm-spacer-block-riser","title":"11mm Spacer Block","description":"\u003c!-- ===================== GRAY BANNER ===================== --\u003e \n\u003cdiv style=\"background:#e5e5e5; padding:12px 15px; margin-bottom:18px;\"\u003e \n    \u003cstrong\u003e11mm Spacer Block | Professional Riser for Clamps and Rails\u003c\/strong\u003e \n\u003c\/div\u003e \n\n\u003c!-- ===================== MAIN HEADER ===================== --\u003e \n\u003ch1\u003e11mm Spacer Block\u003c\/h1\u003e \n\u003cp\u003e \n    This precision-machined \u003cstrong\u003e11mm spacer block\u003c\/strong\u003e is a specialized riser designed to elevate an Arca-Swiss compatible clamp above a rail. By providing this critical added height, the spacer ensures that your support equipment does not interfere with your camera's field of view, particularly when utilizing short focal length lenses.\n\u003c\/p\u003e \n\n\u003chr\u003e \n\n\u003c!-- ===================== QUICK OVERVIEW ===================== --\u003e \n\u003ch2\u003eQuick Overview \u0026amp; Key Features\u003c\/h2\u003e \n\u003cul\u003e \n    \u003cli\u003e\n\u003cstrong\u003eClear Field of View:\u003c\/strong\u003e Effectively raises any clamp by 11mm, preventing the end of a long nodal rail from becoming visible in the viewfinder when a wide-angle or short lens is used.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003ePrecision Anti-Twist Design:\u003c\/strong\u003e Features two dowel pin holes for use with metal dowel pins, ensuring a rock-solid, twist-free connection between the clamp and the rail.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eVersatile Compatibility:\u003c\/strong\u003e Designed for seamless use with various rails—including models E033, E034, E038, and E039—and compatible with clamps from major manufacturers such as RRS, Kirk, and Wimberley.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eProfessional Safety Engineering:\u003c\/strong\u003e All corners and edges are fully radiused and rounded to prevent accidental damage to your gear or hands.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003ePremium Construction:\u003c\/strong\u003e Precision CNC-machined from solid 6061-T6 aircraft-grade aluminum for maximum rigidity and lifelong durability.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eDurable Finish:\u003c\/strong\u003e Features a black hard-coat anodized surface for superior scratch and corrosion protection.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eMade in the USA:\u003c\/strong\u003e Manufactured to professional tolerances for unyielding reliability.\u003c\/li\u003e \n\u003c\/ul\u003e \n\n\u003c!-- ===================== PRODUCT DESCRIPTION ===================== --\u003e \n\u003ch2\u003eEssential Riser Solution for Rail Systems\u003c\/h2\u003e \n\u003cp\u003e \n    The 11mm spacer block is a highly effective \"problem-solver\" for photographers who frequently alternate between short and long focal length lenses on the same rail system. While the spacer itself is not an Arca-Swiss component, it acts as a critical interface that lifts the clamp just enough to clear the equipment's physical profile, ensuring a clean, unobstructed composition.\n\u003c\/p\u003e \n\u003cp\u003e \n    \u003cstrong\u003eTechnical Integrity and Stability:\u003c\/strong\u003e Built for the rigors of professional field use, the integrated dowel pin holes provide a vital registration point that prevents the clamp from rotating under the weight of heavy camera bodies. Recent configurations also make this an ideal spacer for use with Metabones adapters and L-brackets where additional height is required for proper clearance on tripod heads.\n\u003c\/p\u003e \n\n\u003c!-- ===================== SPECIFICATIONS ===================== --\u003e \n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e \n\u003cul\u003e \n    \u003cli\u003e\n\u003cstrong\u003eThickness\/Height:\u003c\/strong\u003e 11mm (0.437 inches)\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 1.00 inch\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 0.50 inches\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eMounting Hardware:\u003c\/strong\u003e Typically includes 1\/4\"-20 flat head screws and 5\/32\" hex wrench\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAlignment:\u003c\/strong\u003e Two dowel pin holes for anti-twist registration\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e CNC Machined 6061-T6 Aluminum\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black Hard-Coat Anodized\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in the USA\u003c\/li\u003e \n\u003c\/ul\u003e","brand":"Hejnar Photo","offers":[{"title":"Default Title","offer_id":67701623357545,"sku":"Spacer-Block-11mm","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/1278\/9353\/files\/Clamp_Spacer-2.jpg?v=1793753679"},{"product_id":"hejnar-photo-3-8-inch-spacer-block-9-525mm","title":"3\/8 Spacer Block (9.525mm)","description":"\u003c!-- ===================== GRAY BANNER ===================== --\u003e \n\u003cdiv style=\"background:#e5e5e5; padding:12px 15px; margin-bottom:18px;\"\u003e \n    \u003cstrong\u003e3\/8\" Spacer Block (9.525mm) | Professional Riser for Clamps and Rails\u003c\/strong\u003e \n\u003c\/div\u003e \n\n\u003c!-- ===================== MAIN HEADER ===================== --\u003e \n\u003ch1\u003e3\/8\" Spacer Block (9.525mm)\u003c\/h1\u003e \n\u003cp\u003e \n    This precision-machined \u003cstrong\u003e3\/8-inch spacer block\u003c\/strong\u003e (9.525mm) is a specialized riser designed to elevate any clamp above a rail. By providing this critical added height, the spacer ensures that your support equipment does not interfere with your camera's field of view, particularly when switching between short and long focal length lenses.\n\u003c\/p\u003e \n\n\u003chr\u003e \n\n\u003c!-- ===================== QUICK OVERVIEW ===================== --\u003e \n\u003ch2\u003eQuick Overview \u0026amp; Key Features\u003c\/h2\u003e \n\u003cul\u003e \n    \u003cli\u003e\n\u003cstrong\u003eClear Field of View:\u003c\/strong\u003e Effectively raises the clamp just enough to ensure that the end of a long rail is no longer visible in the viewfinder when a short lens is used.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003ePrecision Anti-Twist Design:\u003c\/strong\u003e Includes integrated holes for alignment pins and screws to ensure a secure, anti-twist mounting between the rail and the clamp.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eVersatile Compatibility:\u003c\/strong\u003e While primarily used to increase vertical height, these blocks are essential for customizing panorama setups and long lens support systems.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eProfessional Safety Engineering:\u003c\/strong\u003e Features a design where all corners and edges are fully rounded to prevent accidental damage to gear or injury in the field.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003ePremium Construction:\u003c\/strong\u003e Precision CNC-machined from solid 6061-T6 aircraft-grade aluminum for maximum rigidity.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eDurable Finish:\u003c\/strong\u003e Features a black hard-coat anodized surface for superior scratch and corrosion protection.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eMade in the USA:\u003c\/strong\u003e Manufactured to exacting professional tolerances for lifelong reliability.\u003c\/li\u003e \n\u003c\/ul\u003e \n\n\u003c!-- ===================== PRODUCT DESCRIPTION ===================== --\u003e \n\u003ch2\u003eEssential Riser Solution for Rail Systems\u003c\/h2\u003e \n\u003cp\u003e \n    The 3\/8\" spacer block is a highly effective \"problem-solver\" for photographers who frequently alternate between gear configurations on the same rail system. Often, when a short lens is used along with a longer rail, the physical profile of the rail can appear in your shot. Raising the clamp just a bit with this block effectively fixes this problem, ensuring a clean, unobstructed composition.\n\u003c\/p\u003e \n\u003cp\u003e \n    \u003cstrong\u003eTechnical Integrity and Stability:\u003c\/strong\u003e Despite its compact size, this spacer is built for the rigors of professional field use. The integrated alignment features provide a vital registration point that prevents the clamp from rotating under the weight of heavy camera bodies or during high-torque adjustments. Whether you are building a macro stacking rig or a precise panoramic setup, this spacer provides the structural integrity and precision required for advanced technical work.\n\u003c\/p\u003e \n\n\u003c!-- ===================== SPECIFICATIONS ===================== --\u003e \n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e \n\u003cul\u003e \n    \u003cli\u003e\n\u003cstrong\u003eThickness\/Height:\u003c\/strong\u003e 3\/8 Inch (9.525mm)\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 1.00 Inch\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 0.50 Inches\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e CNC Machined 6061-T6 Aluminum\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black Hard-Coat Anodized\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in the USA\u003c\/li\u003e \n\u003c\/ul\u003e","brand":"Hejnar Photo","offers":[{"title":"Default Title","offer_id":67701623390313,"sku":"Spacer-Block-3-8","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/1278\/9353\/files\/Clamp_Spacer-2.jpg?v=1793753679"},{"product_id":"9-16-inch-spacer-block-14-29mm-riser","title":"9\/16 Spacer Block (14.29mm)","description":"\u003c!-- ===================== GRAY BANNER ===================== --\u003e \n\u003cdiv style=\"background:#e5e5e5; padding:12px 15px; margin-bottom:18px;\"\u003e \n    \u003cstrong\u003e9\/16\" Spacer Block (14.29mm) | Professional Riser for Clamps and Rails\u003c\/strong\u003e \n\u003c\/div\u003e \n\n\u003c!-- ===================== MAIN HEADER ===================== --\u003e \n\u003ch1\u003e9\/16\" Spacer Block (14.29mm)\u003c\/h1\u003e \n\u003cp\u003e \n    This precision-machined \u003cstrong\u003e9\/16-inch spacer block\u003c\/strong\u003e (14.29mm) is a specialized riser designed to elevate any clamp above a rail. By providing this critical added height, the spacer ensures that your support equipment does not interfere with your camera's field of view, particularly when switching between short and long focal length lenses.\n\u003c\/p\u003e \n\n\u003chr\u003e \n\n\u003c!-- ===================== QUICK OVERVIEW ===================== --\u003e \n\u003ch2\u003eQuick Overview \u0026amp; Key Features\u003c\/h2\u003e \n\u003cul\u003e \n    \u003cli\u003e\n\u003cstrong\u003eClear Field of View:\u003c\/strong\u003e Effectively raises the clamp just enough to ensure that the end of a long rail is no longer visible in the viewfinder when a short lens is used.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003ePrecision Anti-Twist Design:\u003c\/strong\u003e Includes two integrated dowel pin holes to ensure a secure, anti-twist mounting between the rail and the clamp.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eVersatile Compatibility:\u003c\/strong\u003e Essential for customizing panorama setups and long lens support systems; used with various clamps and rails including models E033, E034, E038, and E039.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eProfessional Safety Engineering:\u003c\/strong\u003e Features a design where all corners and edges are fully rounded to prevent accidental damage to gear or injury in the field.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003ePremium Construction:\u003c\/strong\u003e Precision CNC-machined from solid 6061-T6 aircraft-grade aluminum for maximum rigidity.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eDurable Finish:\u003c\/strong\u003e Features a black hard-coat anodized surface for superior scratch and corrosion protection.\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eMade in the USA:\u003c\/strong\u003e Manufactured to exacting professional tolerances for lifelong reliability.\u003c\/li\u003e \n\u003c\/ul\u003e \n\n\u003c!-- ===================== PRODUCT DESCRIPTION ===================== --\u003e \n\u003ch2\u003eEssential Riser Solution for Rail Systems\u003c\/h2\u003e \n\u003cp\u003e \n    The 9\/16\" spacer block is a highly effective \"problem-solver\" for photographers who frequently alternate between gear configurations on the same rail system. Often, when a short lens is used along with a longer rail, the physical profile of the rail can appear in your shot. Raising the clamp just a bit with this block effectively fixes this problem, ensuring a clean, unobstructed composition.\n\u003c\/p\u003e \n\u003cp\u003e \n    \u003cstrong\u003eTechnical Integrity and Stability:\u003c\/strong\u003e Despite its compact size, this spacer is built for the rigors of professional field use. The integrated alignment features provide a vital registration point that prevents the clamp from rotating under the weight of heavy camera bodies or during high-torque adjustments. Whether you are building a macro stacking rig or a precise panoramic setup, this spacer provides the structural integrity and precision required for advanced technical work.\n\u003c\/p\u003e \n\n\u003c!-- ===================== SPECIFICATIONS ===================== --\u003e \n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e \n\u003cul\u003e \n    \u003cli\u003e\n\u003cstrong\u003eThickness\/Height:\u003c\/strong\u003e 9\/16 Inch (14.29mm)\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 1.00 Inch\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 0.50 Inches\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Two dowel pin holes\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e CNC Machined 6061-T6 Aluminum\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black Hard-Coat Anodized\u003c\/li\u003e \n    \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in the USA\u003c\/li\u003e \n\u003c\/ul\u003e","brand":"Hejnar Photo","offers":[{"title":"Default Title","offer_id":67701623423081,"sku":"Spacer-Block-9-16","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/1278\/9353\/files\/Clamp_Spacer-2-2.jpg?v=1793836044"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/1278\/9353\/collections\/Spacer-Block-9-16-4.jpg?v=1792369172","url":"https:\/\/www.hejnarphotostore.com\/collections\/clamp-accesories.oembed","provider":"Hejnar Photo","version":"1.0","type":"link"}