{"product_id":"value-collection-581919br-hex-socket-cap-screw-1-1-4-12-unf","title":"Value Collection 581919BR Hex Socket Cap Screw 1-1\/4-12 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 581919BR is a partially threaded hex socket cap screw engineered for high-strength fastening applications. It features a 1-1\/4-12 UNF thread size and measures 4.5 inches in length under the head. The screw is machined from alloy steel and finished with a black oxide coating that provides moderate corrosion resistance and reduces light reflection. Drive size is 7\/8 inch hex (Allen). This fastener meets ASME\/ANSI B18.3 and ASTM A574 standards, making it appropriate for structural and mechanical assemblies where precise thread engagement and tensile strength are required. Installed by machinists, millwrights, and maintenance technicians.\u003c\/p\u003e\u003cp\u003eThis cap screw is suited for use in heavy machinery, industrial equipment, and precision mechanical assemblies requiring a fine unified thread pitch. The 1-1\/4-12 UNF specification provides tighter thread engagement compared to coarse-pitch alternatives, making it well suited for applications subject to vibration or where controlled preload is critical. The partial threading allows the unthreaded shank to bear shear loads in clearance-hole applications.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1-1\/4-12 UNF partially threaded for precise thread engagement and shear load capacity\u003c\/li\u003e\n\u003cli\u003e4.5 inches length under head for deep fastening in thick material stacks\u003c\/li\u003e\n\u003cli\u003e7\/8 inch hex socket drive for use with standard Allen wrenches or hex socket tooling\u003c\/li\u003e\n\u003cli\u003eAlloy steel construction for high tensile strength per ASTM A574\u003c\/li\u003e\n\u003cli\u003eBlack oxide finish provides light corrosion protection and low reflectivity\u003c\/li\u003e\n\u003cli\u003eMeets ASME\/ANSI B18.3 dimensional 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 for use in any application requiring a 1-1\/4-12 UNF partially threaded fastener with a 7\/8 inch hex drive.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by qualified machinists or maintenance technicians using a properly sized 7\/8 inch hex key or socket driver. Ensure mating threads are clean and free of debris before installation. Apply thread lubricant or anti-seize compound as required by the equipment manufacturer to achieve accurate torque-to-preload results. Do not use impact drivers on fine-thread socket cap screws unless specified by the application.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-1\/4-12 UNF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Partially 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 inch\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, ASTM A574\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 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: 581919BR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51694830846258,"sku":"581919BR","price":33.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f9ddf215650ae72996f17484b79022ca.jpg?v=1788328830","url":"https:\/\/voomisupply.com\/products\/value-collection-581919br-hex-socket-cap-screw-1-1-4-12-unf","provider":"Voomi Supply","version":"1.0","type":"link"}