{"product_id":"value-collection-581971br-hex-socket-cap-screw-1-1-2-12-unf","title":"Value Collection 581971BR Hex Socket Cap Screw 1-1\/2-12 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 581971BR is a heavy-duty hex socket cap screw designed for high-load fastening applications where precision threading and strong clamping force are required. It features a 1-1\/2-12 UNF thread size, an 8-inch length under head, and a 1-inch hex drive. The fastener is manufactured from alloy steel and finished with a black oxide coating that provides moderate corrosion resistance and reduces light reflection. This screw is partially threaded, making it suitable for applications that require a smooth shank section for shear loading or precise alignment.\u003c\/p\u003e\u003cp\u003eThis cap screw is used in industrial, mechanical, and structural assemblies where fine-thread engagement and high tensile strength are critical. The large 1-1\/2-12 UNF diameter paired with the fine thread pitch delivers strong clamping in applications such as heavy equipment fabrication, machine tool assembly, and industrial maintenance work. It is typically installed by millwrights, machinists, and maintenance mechanics working with heavy-duty structural or mechanical systems.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1-1\/2-12 UNF fine thread for high clamping force and precise adjustment\u003c\/li\u003e\n\u003cli\u003e8-inch length under head accommodates thick material stacks\u003c\/li\u003e\n\u003cli\u003ePartially threaded shank supports shear loading and alignment\u003c\/li\u003e\n\u003cli\u003eAlloy steel construction for high tensile strength\u003c\/li\u003e\n\u003cli\u003eBlack oxide finish provides mild corrosion resistance and low-glare appearance\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 ASME\/ANSI B18.3 hex socket cap screw suitable for use in any application requiring a 1-1\/2-12 UNF partially threaded fastener with a 1-inch hex drive.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation requires a 1-inch hex key or socket drive. Ensure mating threads are clean and free of debris before installation. Apply appropriate thread lubricant or torque to specification per the equipment manufacturer's requirements. Always power down or de-energize any associated equipment before fastener service on mechanical assemblies.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-1\/2-12 UNF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Hex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Size\u003c\/strong\u003e: 1 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\u003eStandard\u003c\/strong\u003e: ASME\/ANSI B18.3 and ASTM A574\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 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: 581971BR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51711993479474,"sku":"581971BR","price":146.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a2414ea2b8f0ba87427f1cb4888566d0.jpg?v=1788482391","url":"https:\/\/voomisupply.com\/products\/value-collection-581971br-hex-socket-cap-screw-1-1-2-12-unf","provider":"Voomi Supply","version":"1.0","type":"link"}