Value Collection CAI203703000-10LBBX Carriage Bolt 3/8-16

Product Description

The VALUE COLLECTION CAI203703000-10LBBX is a 3/8-16 carriage bolt with a 3-inch length under head and a square neck design. Built from Grade 2 steel with a zinc-plated finish, this fastener provides corrosion resistance in standard indoor and light-duty outdoor applications. The square neck seats into a matching hole to prevent rotation during tightening, eliminating the need for a backup wrench on the bolt head. This bolt weighs 0.1 pounds and follows UNC thread standards, making it a common stock item for plumbers, electricians, HVAC installers, and general construction trades.

This carriage bolt is suited for wood-to-wood and wood-to-metal connections in residential and light commercial construction, equipment mounting, and mechanical assemblies. The zinc plating provides a functional barrier against rust in dry or mildly humid environments. The 3/8-16 UNC thread pattern is one of the most widely used coarse-thread sizes in trade work, compatible with standard hex nuts, flange nuts, and coupling nuts of the same thread specification.

Key Features

• 3/8-16 UNC coarse thread — widely stocked and compatible with standard hardware
• 3-inch length under head for moderate-depth through-fastening applications
• Square neck prevents bolt rotation during nut tightening without a wrench on the head
• Grade 2 steel construction suitable for general-purpose, non-structural fastening
• Zinc-plated finish for basic corrosion resistance in dry and low-humidity environments

Compatibility

Designed as a general-purpose replacement or stock carriage bolt for standard 3/8-16 UNC applications in residential and light commercial construction, equipment mounting, and mechanical assemblies.

Installation Notes

Installation requires a properly sized square or round hole that allows the square neck to seat flush and lock against rotation. Tighten from the nut side using a standard wrench or socket; no tool is needed on the bolt head once the neck is seated. Do not use in structural or high-load applications beyond Grade 2 ratings. Follow applicable building codes and fastener specifications for the assembly being completed.