{"product_id":"gibraltar-821117-g-cap-screw-hook-clamp-assembly","title":"Gibraltar 821117-G Cap Screw Hook Clamp Assembly","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GIBRALTAR 821117-G is a cap screw hook clamp assembly designed for secure workholding and fixturing applications in machining and fabrication environments. Built from carbon alloy steel with a black oxide coating, this clamp assembly resists corrosion and wear under shop conditions. It features a 1\/2-13 threaded body with a 0.999 inch body diameter and a 2-9\/16 inch body length. The assembly includes the cap screw, making it a ready-to-install unit. Machinists, toolmakers, and fixturing technicians use this type of clamp to hold workpieces firmly to machine tables, jigs, and fixtures during milling, drilling, and grinding operations.\u003c\/p\u003e\n\u003cp\u003eThis cap screw hook clamp assembly is suited for use on manual and CNC machine tool setups where reliable clamping force and repeatable positioning are required. The 13\/16 inch clamp face height and 3\/4 inch clamp face width make it appropriate for standard T-slot fixture setups and general workholding rigs. The 1\/2-13 thread size is a common inch-series standard, making this assembly compatible with a wide range of shop hardware and clamping kits already in use in most machining operations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCarbon alloy steel construction for strength and durability under clamping loads\u003c\/li\u003e\n  \u003cli\u003eBlack oxide coating provides corrosion resistance in shop environments\u003c\/li\u003e\n  \u003cli\u003e1\/2-13 inch-series thread for broad hardware compatibility\u003c\/li\u003e\n  \u003cli\u003eIncludes cap screw — no additional fastener required for installation\u003c\/li\u003e\n  \u003cli\u003e13\/16 inch clamp face height and 3\/4 inch clamp face width for precise workholding contact\u003c\/li\u003e\n  \u003cli\u003e0.999 inch body diameter and 2-9\/16 inch body length suit standard fixturing setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use component for standard 1\/2-13 threaded workholding and fixture clamping systems used in general machining and fabrication applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by a machinist or toolroom technician. Before installing or repositioning this clamp assembly, ensure all machine power is off and any moving components are fully stopped. Use appropriate torque procedures per your shop standards when securing the cap screw to avoid over-stressing the clamp body. Inspect the clamp face contact area and T-slot or fixture surface for cleanliness and proper seating before applying clamping force.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-13\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Diameter\u003c\/strong\u003e: 0.999 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 2-9\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight of Clamp Face\u003c\/strong\u003e: 13\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth of Clamp Face\u003c\/strong\u003e: 3\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Carbon Alloy Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Black Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncludes Screw\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: GIBRALTAR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 821117-G\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GIBRALTAR","offers":[{"title":"Default Title","offer_id":51712205619506,"sku":"821117-G","price":52.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a528b8fdf14999ba3cd3595de13024df.jpg?v=1788485112","url":"https:\/\/voomisupply.com\/products\/gibraltar-821117-g-cap-screw-hook-clamp-assembly","provider":"Voomi Supply","version":"1.0","type":"link"}