{"product_id":"value-collection-581541ps-hex-socket-cap-screw-1-2-13-unc","title":"Value Collection 581541PS Hex Socket Cap Screw 1\/2-13 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 581541PS is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, tooling fixtures, and industrial equipment. It features a 1\/2-13 UNC thread size and measures 1-3\/8 inches in length under the head. The screw is fully threaded, meaning the thread runs the entire usable length of the shank. It is manufactured from alloy steel and finished with a black oxide coating that provides moderate corrosion resistance and reduces light reflection. This type of fastener is installed using a 3\/8-inch hex drive key and is commonly specified by maintenance technicians, machinists, and mechanical contractors working to ASME and ASTM standards.\u003c\/p\u003e\u003cp\u003eThis cap screw is suited for residential and commercial mechanical applications where a recessed hex drive is required for flush or close-clearance installation. It is a standard UNC-threaded fastener appropriate for steel, cast iron, and similarly threaded materials in general industrial and OEM assembly environments. The black oxide finish makes it a common choice in applications where mild corrosion resistance and a non-reflective surface are both specified. It conforms to ASME\/ANSI B18.3 and ASTM A574 dimensional and strength standards.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1\/2-13 UNC thread size for standard inch-series tapped holes\u003c\/li\u003e\n\u003cli\u003e1-3\/8 inches length under head, fully threaded along the entire shank\u003c\/li\u003e\n\u003cli\u003e3\/8-inch hex socket drive for torque application with an Allen key or hex bit\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 a low-glare surface\u003c\/li\u003e\n\u003cli\u003eConforms to 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 and ASTM A574 compliant hex socket cap screw suitable for 1\/2-13 UNC tapped holes in general industrial, OEM assembly, and mechanical maintenance applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstall using a 3\/8-inch hex key or socket bit driver; ensure the mating tapped hole is clean and free of debris before threading. De-energize any equipment and follow applicable lockout\/tagout procedures before fastener replacement in live machinery. Do not exceed the torque rating for the joint material and always verify thread engagement depth is adequate for the load. Applicable work should conform to ASME or applicable structural standards for the installation type.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-13 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1-3\/8 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: 3\/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\u003eUNSPSC Code\u003c\/strong\u003e: 31161501\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: 581541PS\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51716942692658,"sku":"581541PS","price":16397.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bf15b85ea7eb1be48c6f6e2b30e069c5.jpg?v=1788533729","url":"https:\/\/voomisupply.com\/products\/value-collection-581541ps-hex-socket-cap-screw-1-2-13-unc","provider":"Voomi Supply","version":"1.0","type":"link"}