{"product_id":"value-collection-30039-5-16-18-x-3-1-2-in-hex-cap-screw-gr5","title":"Value Collection 30039 5\/16-18 X 3-1\/2 in Hex Cap Screw Gr5","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 30039 is a Grade 5 steel hex head cap screw sized 5\/16-18 x 3-1\/2 inches, finished with a zinc plating for corrosion resistance. It features a partially threaded shank and a standard UNC thread form, conforming to ASME B18.2.1. This fastener is measured length-under-head and is suited for general mechanical assembly, structural connections, and equipment fabrication. It is installed by HVAC technicians, plumbers, electricians, and general tradespeople wherever a reliable, mid-strength threaded fastener is required. Each package contains 100 pieces.\u003c\/p\u003e\n\u003cp\u003eThis screw is appropriate for a wide range of trade applications including securing equipment panels, mounting brackets, and joining structural members in both residential and light commercial settings. The 5\/16-18 UNC thread and 3-1\/2 inch length make it a common choice for through-bolting thicker assemblies where partial threading is needed to bear shear load at the shank. The zinc-plated finish provides adequate protection in dry or mildly corrosive environments. Grade 5 tensile strength makes this suitable for most standard mechanical load requirements without over-engineering the fastener selection.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5\/16-18 UNC thread size with partially threaded shank for shear-load applications\u003c\/li\u003e\n  \u003cli\u003e3-1\/2 inch length measured under head per ASME B18.2.1 standard\u003c\/li\u003e\n  \u003cli\u003eGrade 5 steel construction for mid-range tensile strength in mechanical assemblies\u003c\/li\u003e\n  \u003cli\u003eZinc-plated finish for corrosion resistance in dry and mildly exposed environments\u003c\/li\u003e\n  \u003cli\u003eConforms to ASME B18.2.1 dimensional standard\u003c\/li\u003e\n  \u003cli\u003eSold in a package of 100 pieces, minimum order quantity of 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard UNC hex head cap screw for general trade and mechanical assembly applications where a 5\/16-18 x 3-1\/2 inch Grade 5 partially threaded fastener is specified.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall using a standard hex wrench, socket, or open-end wrench sized for a 5\/16-inch hex head cap screw. Ensure the mating nut or tapped hole matches the 5\/16-18 UNC thread standard. De-energize and lock out any equipment before fastening or removing hardware on electrical, mechanical, or HVAC assemblies. Do not substitute this Grade 5 fastener in applications that specify Grade 8 or metric property class equivalents.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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: 3-1\/2 inches\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 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: Zinc-Plated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard Compliance\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\u003eWeight\u003c\/strong\u003e: 0.01 pounds\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: 30039\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51699652919602,"sku":"30039","price":54.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/319ed8bac3da4303969b7217c251fe0b.jpg?v=1788378728","url":"https:\/\/voomisupply.com\/products\/value-collection-30039-5-16-18-x-3-1-2-in-hex-cap-screw-gr5","provider":"Voomi Supply","version":"1.0","type":"link"}