{"product_id":"value-collection-215618msc-carriage-bolt-3-8-16-4in-grade-8","title":"Value Collection 215618MSC Carriage Bolt 3\/8-16 4in Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 215618MSC is a Grade 8 alloy steel carriage bolt designed for high-strength fastening applications. Sized at 3\/8-16 UNC thread with a 4-inch length under head, this bolt features a square neck that locks into place upon installation to prevent rotation. The fully threaded shank runs the entire 4-inch length, providing maximum thread engagement across the full grip range. Grade 8 alloy steel construction delivers superior tensile strength compared to lower-grade fasteners, making this bolt appropriate for demanding structural and mechanical connections. The bright uncoated finish suits indoor or protected installations where surface coating is not required.\u003c\/p\u003e\u003cp\u003eThis carriage bolt is suited for structural assemblies, wood-to-metal connections, and general mechanical fastening in construction, manufacturing, and industrial maintenance environments. The 3\/8-16 UNC thread is a widely used standard size found in a broad range of structural and equipment framing applications. Sold in minimum quantities of 25 per order, making it practical for job-site stocking and shop inventory. Installation is straightforward and does not require a wrench on the bolt head due to the square neck design.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGrade 8 alloy steel construction for high tensile strength and durability\u003c\/li\u003e\n\u003cli\u003e3\/8-16 UNC fully threaded shank for maximum thread engagement\u003c\/li\u003e\n\u003cli\u003e4-inch length under head for deep-grip fastening applications\u003c\/li\u003e\n\u003cli\u003eSquare neck prevents bolt rotation during nut tightening without a secondary tool\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish — no coating to interfere with close-tolerance assemblies\u003c\/li\u003e\n\u003cli\u003eConforms to SAE J429 fastener standard\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard SAE J429 Grade 8 carriage bolt for use in structural and mechanical assemblies requiring 3\/8-16 UNC threaded fasteners with a square-neck, fully threaded configuration.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by inserting the square neck into a matching square-hole or soft material so the neck seats and resists rotation while the nut is driven from the opposite side. Power down or de-energize any equipment before fastening in electrical or mechanical enclosures. Follow applicable structural codes and torque guidelines from engineering specifications for Grade 8 fasteners — do not substitute a lower-grade nut or washer in high-load applications. A standard open-end or socket wrench is used on the nut side only.\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: 4 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\u003ePackage Quantity\u003c\/strong\u003e: 25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.132 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161603\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: 215618MSC\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51700612366642,"sku":"215618MSC","price":4875.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/94ee77dad00547d98ed0becb32696267_243350d9-4855-481a-abae-e5fc3143f2aa.jpg?v=1788392701","url":"https:\/\/voomisupply.com\/products\/value-collection-215618msc-carriage-bolt-3-8-16-4in-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}