{"product_id":"value-collection-hci20310300-050bx-hex-head-bolt-5-16-18","title":"Value Collection HCI20310300-050BX Hex Head Bolt 5\/16-18","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION HCI20310300-050BX is a Grade 2 steel hex head bolt with a 5\/16-18 UNC thread and a 3-inch length under head. It is partially threaded and carries an uncoated, bright finish. Built to ASTM A307 standards, this fastener is suited for general-purpose structural and mechanical assemblies where a fully threaded shank is not required. The partial thread design allows the unthreaded shank to bear shear loads across joint interfaces, making it a common choice in light structural connections, equipment mounting, and fabrication work. Licensed tradespeople and fabricators install these in a wide range of commercial and industrial applications.\u003c\/p\u003e\u003cp\u003eThis bolt is used in general mechanical, structural, and maintenance applications across construction, HVAC equipment mounting, electrical panel installation, and light industrial fabrication. The 5\/16-18 UNC thread is one of the most common inch-standard thread sizes, making this fastener compatible with standard hex nuts, lock nuts, and flanged fasteners of the same thread specification. It is sold in a minimum order quantity of 50 per box, making it practical for job-site stocking and contractor supply.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e5\/16-18 UNC thread meets standard inch-system fastener specifications\u003c\/li\u003e\n\u003cli\u003e3-inch length under head accommodates typical multi-layer clamping stacks\u003c\/li\u003e\n\u003cli\u003ePartially threaded shank provides shear resistance across joint interfaces\u003c\/li\u003e\n\u003cli\u003eGrade 2 steel construction suitable for general-purpose, non-critical connections\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish — suitable for dry or protected indoor environments\u003c\/li\u003e\n\u003cli\u003eConforms to ASTM A307 fastener standard\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with standard 5\/16-18 UNC hex nuts, flat washers, and lock nuts in general-purpose mechanical and structural assemblies.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstall using a standard hex wrench or socket driver sized for the bolt head. Ensure mating threads are clean and free of debris before assembly. Power down and de-energize any equipment before installing fasteners in electrical or mechanical enclosures. Follow applicable building codes and torque guidelines specified by the equipment manufacturer or structural engineer of record.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-18\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 3 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: Grade 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Style\u003c\/strong\u003e: Partially Threaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ASTM A307\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 1 pound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 50\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: HCI20310300-050BX\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51720851194162,"sku":"HCI20310300-050BX","price":2765.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e588fdbcb52811573091810d92147c78.jpg?v=1788569956","url":"https:\/\/voomisupply.com\/products\/value-collection-hci20310300-050bx-hex-head-bolt-5-16-18","provider":"Voomi Supply","version":"1.0","type":"link"}