{"product_id":"value-collection-451130br-hex-head-cap-screw-5-8-18-x-6-1-2-in","title":"Value Collection 451130BR Hex Head Cap Screw 5\/8-18 X 6-1\/2 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 451130BR is a Grade 8 steel hex head cap screw with a 5\/8-18 UNF thread and a 6-1\/2 inch length under head. It is partially threaded and left uncoated (bright finish), conforming to ASME B18.2.1 dimensional standards. Grade 8 steel provides high tensile strength suitable for demanding structural and mechanical fastening applications. This screw is installed by machinists, millwrights, maintenance technicians, and general contractors wherever a high-strength inch-series fastener is required.\u003c\/p\u003e\n\u003cp\u003eThis cap screw is used in heavy equipment assembly, structural steel connections, machinery mounting, and industrial maintenance applications. The 5\/8-18 UNF thread designation indicates a fine-thread series, which offers better thread engagement and resistance to loosening under vibration compared to coarse-thread alternatives. The partial threading leaves a smooth shank section near the head, which is common in applications requiring shear load resistance or precise hole alignment.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 8 steel construction for high tensile and proof load strength\u003c\/li\u003e\n  \u003cli\u003e5\/8-18 UNF fine-thread series for improved vibration resistance and thread engagement\u003c\/li\u003e\n  \u003cli\u003ePartially threaded shank provides shear resistance and alignment in close-tolerance holes\u003c\/li\u003e\n  \u003cli\u003eBright\/uncoated finish conforms to ASME B18.2.1 dimensional standard\u003c\/li\u003e\n  \u003cli\u003e5\/16 inch hex key size for installation with standard hex tools\u003c\/li\u003e\n  \u003cli\u003eSold individually — no minimum bundle required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in inch-series fastening applications requiring a 5\/8-18 UNF hex head cap screw meeting ASME B18.2.1 specifications. Suitable as a direct replacement or new-install fastener in structural, mechanical, and industrial assemblies using Grade 8 hardware.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified mechanic, millwright, or maintenance technician familiar with high-strength fastener procedures. Always verify mating thread condition and hole depth before installation. Apply torque according to the published Grade 8 torque specification table for 5\/8-18 fasteners as specified by the equipment manufacturer or applicable engineering standard. Do not use an uncoated fastener in environments requiring corrosion resistance without an appropriate surface treatment or coating.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/8-18\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 6-1\/2 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: Partially 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\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ASME B18.2.1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHex Key Size\u003c\/strong\u003e: 5\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.61 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 451130BR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51695504261426,"sku":"451130BR","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e5c505592930029860b925413e7ee581.jpg?v=1788335894","url":"https:\/\/voomisupply.com\/products\/value-collection-451130br-hex-head-cap-screw-5-8-18-x-6-1-2-in","provider":"Voomi Supply","version":"1.0","type":"link"}