Value Collection 215067MSC Carriage Bolt 1/4-20 Grade 8

Product Description

The VALUE COLLECTION 215067MSC is a Grade 8 alloy steel carriage bolt with a 1/4-20 UNC thread and a 1-1/4 inch length under head. The square neck beneath the domed head locks into wood or thin-metal substrates to prevent rotation during assembly without requiring a wrench on the bolt head. A zinc trivalent chromate finish provides corrosion resistance suitable for general industrial and construction applications. These bolts are fully threaded along their 1-1/4 inch shank length. Sold in a package quantity of 100, they are used by maintenance technicians, contractors, and fabricators wherever a clean, rotation-resistant fastener is required.

This carriage bolt is suited for wood-to-metal connections, light structural assemblies, and equipment framing in both residential and commercial settings. The fully threaded, square-neck design makes it a standard choice for applications where bolt spin-out is a concern and access to the head is limited. The Grade 8 rating indicates high tensile strength, making it appropriate for moderate- to high-load fastening tasks. Minimum order quantity is 100 pieces per package.

Key Features

• Grade 8 alloy steel construction for high tensile strength
• Zinc trivalent chromate finish for corrosion resistance
• Square neck prevents rotation during installation without head tooling
• Fully threaded shank along the 1-1/4 inch length under head
• 1/4-20 UNC thread standard for broad nut and insert compatibility
• Meets SAE J429 fastener standard

Compatibility

Designed as a standard 1/4-20 UNC carriage bolt for use with compatible hex nuts, flange nuts, and threaded inserts in wood, metal, and composite assemblies requiring a square-neck, rotation-resistant fastener.

Installation Notes

Installation is typically performed by general contractors, maintenance technicians, or fabricators using standard hand tools. Always pre-drill a clearance hole sized to allow the square neck to seat flush and grip without splitting the substrate. Tighten the mating nut from the opposite side using an appropriately sized wrench or socket. Follow applicable structural or mechanical codes for torque requirements based on joint design and load specifications.