{"product_id":"value-collection-d39407-hex-head-cap-screw-1-2-20-x-1-3-4-in","title":"Value Collection D39407 Hex Head Cap Screw 1\/2-20 X 1-3\/4 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION D39407 is a fully threaded hex head cap screw designed for high-strength fastening applications in mechanical, industrial, and structural assembly work. Built to Grade 8 steel specifications, this fastener meets the elevated tensile and proof load requirements demanded by heavy-duty bolted joints. The 1\/2-20 UNF thread profile delivers fine-thread engagement for applications where vibration resistance and precise clamping force are priorities. A zinc yellow dichromate finish provides corrosion protection suitable for general service environments. Machinists, millwrights, and maintenance technicians routinely specify Grade 8 UNF fasteners for critical joints in equipment assemblies, brackets, and structural connections.\u003c\/p\u003e\n\u003cp\u003eThis screw is suited for use in equipment manufacturing, machinery maintenance, and fabrication work where fine-thread, high-strength fasteners are required. The 1\/2-20 UNF thread size is commonly found in automotive, agricultural, and industrial equipment applications. Full threading along the 1-3\/4-inch length under head allows maximum thread engagement across varying material thicknesses, making it appropriate for through-bolting and blind-hole configurations alike. Minimum order quantity is 25 pieces per order.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 8 steel construction meets high tensile and proof load requirements for critical fastening joints\u003c\/li\u003e\n  \u003cli\u003e1\/2-20 UNF fine-thread profile provides enhanced vibration resistance compared to coarse-thread equivalents\u003c\/li\u003e\n  \u003cli\u003eFully threaded shank maximizes thread engagement across varied material thicknesses\u003c\/li\u003e\n  \u003cli\u003eZinc yellow dichromate finish delivers corrosion resistance for general indoor and light-duty outdoor service\u003c\/li\u003e\n  \u003cli\u003eConforms to ASME B18.2.1 dimensional standards for consistent fit and interchangeability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard-dimension hex head cap screw per ASME B18.2.1, compatible with any 1\/2-20 UNF tapped hole or mating nut requiring a Grade 8 fastener.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists, millwrights, or maintenance technicians using a standard hex wrench or socket drive sized for a 1\/2-inch Grade 8 hex head. Always ensure mating threads are clean and free of debris before assembly. When used in safety-critical joints, torque to the value specified by the equipment manufacturer or applicable engineering standard. Do not reuse fasteners that show signs of thread damage, corrosion, or deformation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1-3\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\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: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Grade 8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: Zinc Yellow Dichromate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ASME B18.2.1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 25\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: D39407\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51698528813362,"sku":"D39407","price":50.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/61a6832d5946e5a6481d1c0055d8aebd.jpg?v=1788364268","url":"https:\/\/voomisupply.com\/products\/value-collection-d39407-hex-head-cap-screw-1-2-20-x-1-3-4-in","provider":"Voomi Supply","version":"1.0","type":"link"}