{"product_id":"value-collection-215538msc-carriage-bolt-3-8-16-2in-grade-8","title":"Value Collection 215538MSC Carriage Bolt 3\/8-16 2in Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 215538MSC is a Grade 8 alloy steel carriage bolt designed for high-strength fastening applications requiring a smooth, round head and a square neck that resists rotation during installation. This bolt features a 3\/8-16 UNC thread and is fully threaded along its 2-inch length under head. The uncoated, bright finish leaves the alloy steel surface bare, making it suitable for use where coating thickness would affect fit or where a secondary finish will be applied. Grade 8 classification meets SAE J429 standards, indicating a tensile strength rating appropriate for structural and heavy-duty mechanical assemblies. It is typically installed by millwrights, ironworkers, equipment technicians, and general contractors.\u003c\/p\u003e\u003cp\u003eThis carriage bolt is suited for structural connections, machinery mounting, wood-to-metal assemblies, and general industrial fastening where a flush, buttonhead profile is required on the bearing surface. The square neck beneath the head embeds into wood or seats in a square hole in metal to prevent spinning during nut tightening. Applications span residential and commercial construction framing, trailer fabrication, agricultural equipment repair, and heavy-duty fixture mounting. No specific compatible model families were identified in the product data.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGrade 8 alloy steel construction meets SAE J429 for high tensile strength fastening\u003c\/li\u003e\n\u003cli\u003e3\/8-16 UNC fully threaded shaft along the full 2-inch length under head\u003c\/li\u003e\n\u003cli\u003eSquare neck beneath the round head prevents bolt rotation during tightening\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish suitable for secondary coating or paint application\u003c\/li\u003e\n\u003cli\u003eInch measurement system for compatibility with standard UNC hardware\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard 3\/8-16 UNC carriage bolt compatible with any application requiring a Grade 8 alloy steel fastener with a square neck and 2-inch length under head per SAE J429 specifications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by inserting the bolt through a pre-drilled hole sized to allow the square neck to seat flush, preventing rotation. A flat washer and hex nut are typically applied to the threaded end and tightened with a wrench or socket set. Always ensure the mating material is capable of withstanding the clamping load appropriate for a Grade 8 fastener. Follow applicable structural codes and torque guidelines specified in the project drawings or engineering documentation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-16\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\u003eThread Style\u003c\/strong\u003e: Fully Threaded\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: Alloy 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\u003eFastener Standard\u003c\/strong\u003e: SAE J429\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: 0.07 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: 215538MSC\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51709031940402,"sku":"215538MSC","price":1153.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/94ee77dad00547d98ed0becb32696267_acf1e013-18a8-41c8-bf6c-01158ae6fabd.jpg?v=1788450255","url":"https:\/\/voomisupply.com\/products\/value-collection-215538msc-carriage-bolt-3-8-16-2in-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}