{"product_id":"value-collection-581552pr-hex-socket-cap-screw-1-2-13-unc","title":"Value Collection 581552PR Hex Socket Cap Screw 1\/2-13 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 581552PR is a hex socket cap screw designed for high-strength fastening applications across mechanical, structural, and industrial assembly work. This fastener features a 1\/2-13 UNC thread size with a 4.75 inch length under head and is partially threaded, allowing for controlled clamping force in bolted joints. Made from alloy steel with a black oxide coating, it provides enhanced corrosion resistance compared to bare steel. The 3\/8 inch hex drive socket accepts standard hex keys and bit drivers. Installation is typically performed by machinists, maintenance technicians, and mechanical contractors.\u003c\/p\u003e\u003cp\u003eThis cap screw is suited for use in general industrial machinery, equipment assembly, fabrication, and maintenance applications requiring a strong, reliable fastener. The partially threaded shank provides a smooth bearing surface in the grip area, which is important when fastening through clearance holes or when shear load is a design consideration. The black oxide finish blends well in applications where appearance matters alongside performance.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAlloy steel construction for high tensile strength in demanding fastening applications\u003c\/li\u003e\n\u003cli\u003eBlack oxide coating provides moderate corrosion resistance and reduces light reflection\u003c\/li\u003e\n\u003cli\u003e1\/2-13 UNC thread form for broad compatibility with standard inch-series tapped holes\u003c\/li\u003e\n\u003cli\u003ePartially threaded shank preserves a smooth grip section for improved shear load handling\u003c\/li\u003e\n\u003cli\u003e3\/8 inch hex drive size fits widely available hex keys and socket drive tools\u003c\/li\u003e\n\u003cli\u003eMeets ASME\/ANSI B18.3 and ASTM A574 standards for socket head cap screws\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard-duty socket head cap screw compatible with any 1\/2-13 UNC tapped hole in equipment, fixtures, or assemblies requiring an alloy steel fastener per ASME\/ANSI B18.3 and ASTM A574 specifications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed using a properly sized 3\/8 inch hex key or socket drive to avoid rounding the drive recess. Ensure mating threads are clean and free of debris before driving the fastener. Apply a thread lubricant or anti-seize compound when specified by the equipment manufacturer to achieve accurate clamp load. Always follow applicable mechanical standards and equipment service documentation when specifying fastener torque values.\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: 4.75 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: 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\/Coating\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: 0.29 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161501\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: 581552PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51694322680114,"sku":"581552PR","price":4290.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/83b3205e96c4337f831dcf98db0ef8b0.jpg?v=1788323104","url":"https:\/\/voomisupply.com\/products\/value-collection-581552pr-hex-socket-cap-screw-1-2-13-unc","provider":"Voomi Supply","version":"1.0","type":"link"}