{"product_id":"value-collection-489048ps-carriage-bolt-5-16-18-2-in-square-neck","title":"Value Collection 489048PS Carriage Bolt 5\/16-18 2 in Square Neck","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 489048PS is a 5\/16-18 UNC carriage bolt with a 2-inch length under head and a square neck design. Manufactured from Grade 2 steel with a zinc-plated finish, this fastener meets ASTM A307 standards. The square neck seats into pre-drilled material to prevent rotation during installation, eliminating the need for a wrench on the bolt head. Commonly used in wood-to-wood and wood-to-metal connections, this bolt is a standard option for light structural and general assembly applications across construction, HVAC equipment mounting, and utility installations.\u003c\/p\u003e\u003cp\u003eThis carriage bolt is suited for general construction, light structural framing, equipment mounting, and wood assembly work. The 5\/16-18 UNC thread pattern is a widely used inch-series thread, making hardware and nut compatibility straightforward. The zinc-plated finish provides moderate corrosion resistance for indoor and sheltered outdoor environments. Installers working on HVAC curb mounting, equipment bases, or general trade work will find this a practical, code-compliant fastener option.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e5\/16-18 UNC thread size for broad nut and hardware compatibility\u003c\/li\u003e\n\u003cli\u003e2-inch length under head suits standard wood and light metal assemblies\u003c\/li\u003e\n\u003cli\u003eSquare neck prevents bolt rotation during tightening without a second wrench\u003c\/li\u003e\n\u003cli\u003eGrade 2 steel construction meets ASTM A307 fastener standards\u003c\/li\u003e\n\u003cli\u003eZinc-plated finish provides moderate corrosion resistance in sheltered environments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard inch-series carriage bolt for general assembly and light structural applications requiring a 5\/16-18 UNC thread and 2-inch under-head length.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by carpenters, general contractors, or trade mechanics using standard hand tools. Drill a clean through-hole sized to match the bolt shank so the square neck seats flush and locks against rotation. Thread a compatible 5\/16-18 nut and washer onto the exposed end and tighten to the joint requirements of the applicable building code or equipment manufacturer guidelines. Do not use in direct-burial or continuous-immersion applications where the zinc coating may be insufficient for the corrosion environment.\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: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck Type\u003c\/strong\u003e: Square\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: Zinc-Plated\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\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161603\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 100\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: 489048PS\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51692685197618,"sku":"489048PS","price":2541.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/37eb42ec5caebebe0491d882a23d7d8d.jpg?v=1788301189","url":"https:\/\/voomisupply.com\/products\/value-collection-489048ps-carriage-bolt-5-16-18-2-in-square-neck","provider":"Voomi Supply","version":"1.0","type":"link"}