{"product_id":"value-collection-33628-2-hex-socket-cap-screw-5-16-18","title":"Value Collection -33628-2 Hex Socket Cap Screw 5\/16-18","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION -33628-2 is a partially threaded hex socket cap screw engineered for secure, high-torque fastening in industrial and mechanical assemblies. Sized at 5\/16-18 UNC with a 3-3\/4 inch length under head, it is driven by a 1\/4 inch hex key and manufactured from alloy steel for high tensile strength. The black oxide finish provides moderate corrosion resistance and reduces light reflection in precision assemblies. This fastener meets ASME\/ANSI B18.3 and ASTM A574 standards, making it suitable for structural and machine-building applications where consistent clamping force and dimensional accuracy are required.\u003c\/p\u003e\u003cp\u003eThis screw is commonly used in machine tool fixtures, jigs, structural steel fabrication, and general industrial assembly. The partial threading design allows for precise alignment in clearance holes before full engagement, which is typical in flanged joint assemblies and mechanical housings. It is installed by machinists, millwrights, and maintenance technicians across manufacturing and fabrication environments. Minimum order quantity is 25 pieces per order.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e5\/16-18 UNC thread size for standard imperial fastener compatibility\u003c\/li\u003e\n\u003cli\u003e3-3\/4 inch length under head suits deeper grip and thicker material stacks\u003c\/li\u003e\n\u003cli\u003ePartially threaded shank allows accurate part alignment in clearance-fit applications\u003c\/li\u003e\n\u003cli\u003eAlloy steel construction provides high tensile strength for demanding assemblies\u003c\/li\u003e\n\u003cli\u003eBlack oxide coating offers mild corrosion resistance and a low-glare finish\u003c\/li\u003e\n\u003cli\u003eMeets ASME\/ANSI B18.3 and ASTM A574 standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard 5\/16-18 UNC hex socket cap screw for use in any application requiring an ASME\/ANSI B18.3-compliant socket head fastener with a 1\/4 inch hex drive.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation requires a 1\/4 inch hex key or Allen-drive bit; use a calibrated torque wrench when assembly specs require controlled clamping force. Power down and de-energize any equipment before replacing fasteners in live mechanical assemblies. Ensure mating threads are clean and free of debris before installation to avoid cross-threading or false torque readings. Follow applicable ASME or facility-specific torque guidelines for 5\/16-18 UNC alloy steel fasteners.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-18 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 3-3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Hex Socket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Size\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Partially Threaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Alloy Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Black Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ASME\/ANSI B18.3 and ASTM A574\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VALUE COLLECTION\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: -33628-2\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51715351445810,"sku":"-33628-2","price":75.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/747386c5dbd7e3c06b88c08e375080a1.jpg?v=1788512536","url":"https:\/\/voomisupply.com\/products\/value-collection-33628-2-hex-socket-cap-screw-5-16-18","provider":"Voomi Supply","version":"1.0","type":"link"}