{"product_id":"value-collection-581021pr-hex-socket-cap-screw-1-64-unc","title":"Value Collection 581021PR Hex Socket Cap Screw 1-64 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 581021PR is a hex socket cap screw designed for precision fastening in tight-clearance applications. Manufactured from alloy steel with a black oxide coating, this screw measures 3\/8 inches under the head and is fully threaded on a 1-64 UNC thread form. The 5\/64 inch hex drive accepts a standard Allen key or hex bit driver. Black oxide finish provides mild corrosion resistance and reduces light reflection, making it a practical choice for mechanical assemblies, instrument work, and small-frame fabrication where controlled torque and thread engagement matter. Sold in minimum order quantities of 100.\u003c\/p\u003e\u003cp\u003eThis fastener is suited for light-duty mechanical and electromechanical assemblies requiring small-diameter, fine-pitch threading. Common applications include instrument panels, electronics enclosures, fixture jigs, and precision machine components where space constraints rule out larger fastener profiles. Licensed mechanics, machine builders, and assembly technicians are the typical installers. The 1-64 UNC thread designation is the coarsest standard thread available at the No. 1 diameter, offering reliable engagement in thin or tapped metal stock.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFully threaded 1-64 UNC for maximum thread engagement in short-grip applications\u003c\/li\u003e\n\u003cli\u003eAlloy steel construction for strength in small-diameter fastener applications\u003c\/li\u003e\n\u003cli\u003eBlack oxide coating provides mild corrosion resistance and matte appearance\u003c\/li\u003e\n\u003cli\u003e5\/64 inch internal hex drive compatible with standard Allen keys and hex bit sets\u003c\/li\u003e\n\u003cli\u003eConforms to ASME\/ANSI B18.3 and ASTM A574 standards\u003c\/li\u003e\n\u003cli\u003e3\/8 inch length under head suits thin-stack and shallow-boss installations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard replacement or stock fastener for any application requiring a 1-64 UNC fully threaded hex socket cap screw with a 3\/8 inch length under head.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation requires a 5\/64 inch hex key or matching hex bit driver. Always verify that the tapped hole thread form and class of fit match the 1-64 UNC specification before driving the fastener. Do not overtighten small-diameter alloy steel screws, as thread stripping in soft mating materials is a common failure mode. Follow applicable machine design standards and torque guidelines from the fastener standard for the specific joint material and application.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-64 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 3\/8 inches\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: 5\/64 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\/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\u003eUNSPSC Code\u003c\/strong\u003e: 31161501\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 100\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: 581021PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51705094406450,"sku":"581021PR","price":9677.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8cdfb65118e71b60b764914358f7c81a.jpg?v=1788426762","url":"https:\/\/voomisupply.com\/products\/value-collection-581021pr-hex-socket-cap-screw-1-64-unc","provider":"Voomi Supply","version":"1.0","type":"link"}