{"product_id":"value-collection-581365pr-hex-socket-cap-screw-1-4-20-unc","title":"Value Collection 581365PR Hex Socket Cap Screw 1\/4-20 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe Value Collection 581365PR is a hex socket cap screw designed for high-strength fastening in mechanical, industrial, and trade applications. It features a 1\/4-20 UNC thread size with full threading along a 5\/16 inch length under the head. The recessed 3\/16 inch hex drive requires an Allen key or hex bit driver, making it well suited for installations where clearance is limited or a low-profile fastener head is required. Made from alloy steel with a black oxide finish, this screw offers solid tensile strength and moderate corrosion resistance for dry or lightly protected environments. Machinists, maintenance technicians, and general contractors install this fastener type across a wide range of equipment assembly and repair tasks.\u003c\/p\u003e\u003cp\u003eThis cap screw is appropriate for use in general mechanical assemblies, machine guarding, fixture construction, tooling, and equipment fabrication. Its fully threaded shank and fine-tolerance UNC thread profile allow secure engagement in tapped holes where thread stripping resistance and consistent clamp load are priorities. The black oxide coating provides a matte finish that reduces light reflection in precision or optical equipment enclosures and offers mild surface protection compared to bare steel.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1\/4-20 UNC thread size for broad compatibility with standard inch-pattern tapped holes\u003c\/li\u003e\n\u003cli\u003eFully threaded 5\/16 inch length under the head for maximum thread engagement in shallow tapped bores\u003c\/li\u003e\n\u003cli\u003e3\/16 inch internal hex drive for use with Allen keys or hex bit drivers\u003c\/li\u003e\n\u003cli\u003eAlloy steel construction meets ASME\/ANSI B18.3 and ASTM A574 standards for socket cap screws\u003c\/li\u003e\n\u003cli\u003eBlack oxide coating provides mild corrosion resistance and a non-reflective matte finish\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard inch-series socket cap screw for use in any application requiring a 1\/4-20 UNC fully threaded fastener per ASME\/ANSI B18.3 and ASTM A574 specifications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation requires a 3\/16 inch hex key or hex bit rated for the torque demands of the application. Ensure the mating tapped hole meets 1\/4-20 UNC thread specifications and is free of debris before driving the screw. Power down or de-energize any equipment before accessing fastened assemblies in electrical or mechanical enclosures. Do not exceed the torque limits defined by the ASTM A574 standard for this screw size and grade.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 5\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Hex (Allen)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Size\u003c\/strong\u003e: 3\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Fully 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\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: 581365PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51701684306226,"sku":"581365PR","price":5224.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/17795d28940ec1b69f7b8b6fe68177aa.jpg?v=1788403702","url":"https:\/\/voomisupply.com\/products\/value-collection-581365pr-hex-socket-cap-screw-1-4-20-unc","provider":"Voomi Supply","version":"1.0","type":"link"}