Value Collection CAI50370300-050B Carriage Bolt 3/8-16

Product Description

The VALUE COLLECTION CAI50370300-050B is a Grade 5 steel carriage bolt with a 3/8-16 UNC thread size and a 3-inch length under the head. The square neck beneath the domed head locks into wood or soft materials during installation, preventing rotation without requiring a wrench on the bolt itself. A zinc-plated finish provides baseline corrosion resistance suitable for general indoor and light-duty outdoor applications. This bolt is a standard inch-system fastener used across construction, structural framing, and equipment assembly applications where a clean, flush head finish is required.

This carriage bolt suits residential and light commercial construction tasks including wood-to-wood and wood-to-metal connections. Typical applications include deck framing, fence assembly, playground equipment, and general structural connections where a smooth domed head is preferred on the visible face. The 3/8-16 UNC thread is one of the most common fastener sizes in North American construction trades, compatible with standard hex nuts and washers of the same thread designation.

Key Features

• Grade 5 steel construction for reliable tensile and shear strength in structural applications
• Zinc-plated finish for corrosion resistance in general-purpose environments
• Square neck under the domed head prevents bolt rotation during nut tightening
• 3/8-16 UNC thread — one of the most widely stocked standard inch-system thread sizes
• 3-inch length under head suits medium-depth through-connections in wood framing and panel assemblies
• Minimum order quantity of 50 pieces supports job-site and shop stock purchasing

Compatibility

Designed as a standard inch-system carriage bolt compatible with 3/8-16 UNC hex nuts, lock nuts, and flat washers used in general construction and structural fastening applications.

Installation Notes

Installation is performed by tradespeople and general contractors using standard hand tools. Drill or punch a clearance hole through the mating material before driving the bolt through; the square neck seats into the material to resist rotation. Tighten the nut from the threaded end using a standard wrench or socket. Do not overtighten into soft wood substrates, as the square neck can pull through the material if clamping force is excessive.