{"product_id":"value-collection-99031-hex-head-cap-screw-5-16-18-grade-8-100pk","title":"Value Collection 99031 Hex Head Cap Screw 5\/16-18 Grade 8 100pk","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 99031 is a 5\/16-18 x 1-1\/2 inch hex head cap screw manufactured from Grade 8 steel with a bright, uncoated finish. Partially threaded along its shank, this fastener is designed for high-strength bolted connections in demanding mechanical and structural applications. Grade 8 steel provides greater tensile strength than Grade 5 or Grade 2 fasteners, making it a reliable choice where joint integrity is critical. Sold in a package of 100 pieces, this screw meets ASME B18.2.1 dimensional standards for inch-series hex head cap screws. Machinists, millwrights, equipment assemblers, and maintenance technicians commonly spec this fastener for heavy equipment, tooling, and fabrication work.\u003c\/p\u003e\u003cp\u003eThis cap screw is suited for general industrial, commercial, and heavy-duty maintenance applications requiring a high-strength UNC-threaded fastener. The 5\/16-18 UNC thread pitch is a widely used coarse thread standard compatible with standard tapping and fastener tooling. The partial threading is appropriate for applications where a shoulder or grip length under the head is needed to maintain clamping load across unthreaded material. This 100-piece package is practical for shop stock, service van inventory, or production line use.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGrade 8 steel construction for high tensile and proof load strength\u003c\/li\u003e\n\u003cli\u003e5\/16-18 UNC coarse thread for broad compatibility with standard taps and nuts\u003c\/li\u003e\n\u003cli\u003ePartially threaded shank provides a grip length under the head\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish — suitable for use with plated nuts or in dry indoor environments\u003c\/li\u003e\n\u003cli\u003eMeets ASME B18.2.1 dimensional standards for inch-series hex head cap screws\u003c\/li\u003e\n\u003cli\u003ePackaged in quantities of 100 for shop stock or production use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard inch-series hex head cap screw for use with 5\/16-18 UNC threaded holes, nuts, and inserts in general industrial, mechanical, and structural assemblies.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed with a standard 1\/2-inch hex wrench or socket. Always verify the mating thread is 5\/16-18 UNC before installation. Torque to the appropriate specification for Grade 8 fasteners as listed in your application engineering reference or applicable code. Do not use an impact driver without a torque-limiting method, as over-torque can yield Grade 8 cap screws in smaller diameters.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-18 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1-1\/2 inches\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: 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Bright \/ Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Partially Threaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\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\u003ePackage Quantity\u003c\/strong\u003e: 100 pieces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Weight\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: 99031\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51692863750450,"sku":"99031","price":35.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d3cf6d9f79a0d94c488626d318a585fd.jpg?v=1788304208","url":"https:\/\/voomisupply.com\/products\/value-collection-99031-hex-head-cap-screw-5-16-18-grade-8-100pk","provider":"Voomi Supply","version":"1.0","type":"link"}