{"product_id":"value-collection-581257pr-hex-socket-cap-screw-8-32-unc","title":"Value Collection 581257PR Hex Socket Cap Screw 8-32 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 581257PR is a hex socket cap screw designed for precision fastening in mechanical assemblies, machinery, and structural applications. It carries an 8-32 UNC thread size with a 2-inch length under head and is partially threaded for proper clamping load distribution. The 9\/64-inch hex drive accepts a standard allen key or hex bit driver. Made from alloy steel with a black oxide finish, this screw offers solid mechanical strength and moderate corrosion resistance for indoor and controlled-environment installations. It meets ASME\/ANSI B18.3 and ASTM A574 standards, making it suitable for applications that require verified fastener performance.\u003c\/p\u003e\u003cp\u003eThis screw is suited for use in manufacturing, equipment assembly, machine building, and general industrial maintenance. Partially threaded cap screws like this one are commonly used when the unthreaded shank needs to pass through a clearance hole before engaging a tapped bore. The black oxide coating reduces galling and provides a clean finished appearance. Typical installers include machinists, millwrights, maintenance technicians, and general mechanical assemblers working in shop or field environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e8-32 UNC thread for use with standard tapped holes in that size range\u003c\/li\u003e\n\u003cli\u003e2-inch length under head provides adequate grip length for deeper assemblies\u003c\/li\u003e\n\u003cli\u003ePartial threading allows shank to pass through clearance holes cleanly\u003c\/li\u003e\n\u003cli\u003e9\/64-inch hex drive accepts standard allen keys and hex bit drivers\u003c\/li\u003e\n\u003cli\u003eAlloy steel construction meets ASTM A574 mechanical requirements\u003c\/li\u003e\n\u003cli\u003eBlack oxide finish reduces surface friction and provides a uniform appearance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or standard-stock hex socket cap screw for mechanical assemblies requiring an 8-32 UNC partially threaded fastener with a 2-inch length under head.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation requires a 9\/64-inch hex key or matching hex bit driver. Ensure the mating tapped hole meets 8-32 UNC thread specifications before driving the fastener. Do not over-torque alloy steel screws in softer base materials such as aluminum. Follow applicable ASME B18.3 torque guidelines for fastener size and material class when torque values are required by the application.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 8-32 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 2 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: 9\/64 inches\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 Coating\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: 0.01 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: 581257PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51716367155506,"sku":"581257PR","price":3909.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d65ade40044d486cb231340707249c09.jpg?v=1788524987","url":"https:\/\/voomisupply.com\/products\/value-collection-581257pr-hex-socket-cap-screw-8-32-unc","provider":"Voomi Supply","version":"1.0","type":"link"}