{"product_id":"value-collection-581867br-hex-socket-cap-screw-1-1-8-7-unc","title":"Value Collection 581867BR Hex Socket Cap Screw 1-1\/8-7 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 581867BR is a hex socket cap screw designed for high-strength bolted connections in industrial, mechanical, and structural applications. Made from alloy steel with a black oxide finish, this fastener provides reliable clamping force and corrosion resistance in demanding environments. It features a 1-1\/8-7 UNC thread size, a 3.5-inch length under head, and a 7\/8-inch hex drive socket. The black oxide coating reduces surface friction and provides light corrosion protection. This screw meets ASME\/ANSI B18.3 and ASTM A574 standards, making it suitable for precision-spec installations where fastener grade matters.\u003c\/p\u003e\u003cp\u003eThis cap screw is used in a wide range of industrial and mechanical assembly applications, including machine frames, hydraulic equipment, tooling fixtures, and heavy-duty structural assemblies. The fully threaded shank provides maximum thread engagement across the full 3.5-inch length under head, which is especially useful when threading into deeper tapped holes or when a high clamping load is required. Machinists, millwrights, pipefitters, and maintenance technicians commonly install this type of fastener using a standard hex key or socket driver.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1-1\/8-7 UNC fully threaded alloy steel construction for high tensile strength\u003c\/li\u003e\n\u003cli\u003e3.5-inch length under head for deep thread engagement\u003c\/li\u003e\n\u003cli\u003e7\/8-inch hex drive socket for high-torque installation\u003c\/li\u003e\n\u003cli\u003eBlack oxide finish for light corrosion resistance and reduced galling\u003c\/li\u003e\n\u003cli\u003eMeets ASME\/ANSI B18.3 and ASTM A574 fastener standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard UNC hex socket cap screw for use in any application requiring a 1-1\/8-7 thread form and a 3.5-inch length under head in alloy steel construction.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstall using a correctly sized 7\/8-inch hex key or socket to avoid rounding the drive recess. Ensure the mating tapped hole is properly cleaned and free of debris before installation. Always de-energize or lock out equipment before servicing fastened assemblies on machinery. Follow applicable torque specifications from the equipment manufacturer or relevant industry standards for ASTM A574 alloy steel cap screws.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-1\/8-7 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 3.5 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: 7\/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\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: 581867BR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51699462308146,"sku":"581867BR","price":33.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e2816fc3ea1a0de3ebbded6c00312548_c00a6a85-7a5e-463f-92cc-a15b15eb7fee.jpg?v=1788375912","url":"https:\/\/voomisupply.com\/products\/value-collection-581867br-hex-socket-cap-screw-1-1-8-7-unc","provider":"Voomi Supply","version":"1.0","type":"link"}