Value Collection CAI202501000-10LBBX Carriage Bolt 1/4-20

Product Description

The VALUE COLLECTION CAI202501000-10LBBX is a 1/4-20 UNC carriage bolt with a 1-inch length under head and a square neck designed to resist rotation during fastening without requiring a tool on the bolt end. Manufactured from Grade 2 steel with a zinc-plated finish, it provides basic corrosion resistance suitable for general-purpose indoor and light outdoor fastening applications. The square neck seats into a corresponding square hole in the mating material, locking the bolt in place as the nut is tightened. This fastener is commonly installed by carpenters, general contractors, maintenance technicians, and trade professionals across HVAC, plumbing, and electrical rough-in work.

This carriage bolt is suited for light-duty structural and non-structural assemblies where a flush, round-head appearance is required on one side of the joint. Typical applications include wood-to-wood connections, equipment mounting brackets, light framing, and fixture attachment in residential and commercial settings. The zinc plating offers a base level of protection against oxidation in dry or mildly humid environments. This fastener is sold individually and is appropriate for low-load applications consistent with Grade 2 steel specifications.

Key Features

• 1/4-20 UNC thread size for broad compatibility with standard nuts and threaded hardware
• 1-inch length under head for use in thin to medium material stack-ups
• Square neck locks bolt in place during nut tightening, eliminating the need for a wrench on the bolt end
• Grade 2 steel construction meets general-purpose fastener strength requirements
• Zinc-plated finish provides basic corrosion resistance in dry and low-humidity environments
• Inch system of measurement; thread standard UNC

Compatibility

Designed as a general-purpose replacement or new-install carriage bolt for applications requiring a 1/4-20 UNC thread, 1-inch length under head, and square neck in standard inch-dimensioned assemblies.

Installation Notes

Installation requires drilling or punching a square hole sized to match the square neck so the bolt seats flush and resists rotation. Tighten the mating nut using a standard wrench or socket; do not use impact tools at high torque settings on Grade 2 fasteners, as this grade has lower proof load limits than Grade 5 or Grade 8. Follow applicable building codes or equipment manufacturer torque guidelines for the specific assembly. Inspect the zinc plating for damage before installation in any environment where corrosion resistance is critical.