{"product_id":"value-collection-40258-hex-socket-cap-screw-1-2-20-unf","title":"Value Collection 40258 Hex Socket Cap Screw 1\/2-20 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 40258 is a hex socket cap screw designed for applications requiring a secure, high-strength threaded fastener. Sized at 1\/2-20 UNF with a 1-1\/2 inch length under head, this screw is fully threaded and driven with a 3\/8 inch hex key. Constructed from alloy steel and finished with a black oxide coating, it delivers corrosion resistance and surface hardness suited for demanding mechanical and industrial environments. The ASME\/ANSI B18.3 and ASTM A574 standards govern its dimensional and mechanical requirements, making it a reliable choice for precision assemblies where thread fit and tensile strength matter.\u003c\/p\u003e\n\u003cp\u003eThis fastener is appropriate for use in mechanical assemblies, machine frames, tooling fixtures, and industrial equipment where a recessed-drive cap screw is specified. The 1\/2-20 UNF fine thread pitch is common in applications requiring tighter thread engagement and reduced axial movement under vibration. Trades including millwrights, mechanical contractors, and equipment maintenance technicians regularly use this style of fastener during fabrication, repair, and installation work. Sold individually with a minimum order quantity of 25 pieces.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/2-20 UNF fine thread for tight thread engagement and vibration resistance\u003c\/li\u003e\n  \u003cli\u003e1-1\/2 inch length under head, fully threaded\u003c\/li\u003e\n  \u003cli\u003e3\/8 inch hex (Allen) drive socket\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction meets ASTM A574 mechanical requirements\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish provides mild corrosion resistance and reduces light reflection\u003c\/li\u003e\n  \u003cli\u003eConforms to ASME\/ANSI B18.3 dimensional standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard ASME\/ANSI B18.3 hex socket cap screw for use in any application specifying a 1\/2-20 UNF fully threaded socket head cap screw with a 1-1\/2 inch length under head.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall using a 3\/8 inch hex key or socket drive rated for the fastener size. Ensure mating threads are clean and free of debris before installation. Follow applicable torque specifications from the equipment manufacturer or relevant ASME standards for alloy steel fasteners of this size and grade. Black oxide finish is a mild coating and is not a substitute for additional corrosion protection in wet or outdoor environments.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-20 UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1-1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Fully Threaded\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: 3\/8 inches\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\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 40258\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51702543483186,"sku":"40258","price":43.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d6c13be2dd985321a88fbe6c84fced32.jpg?v=1788411888","url":"https:\/\/voomisupply.com\/products\/value-collection-40258-hex-socket-cap-screw-1-2-20-unf","provider":"Voomi Supply","version":"1.0","type":"link"}