Value Collection CAI202502500-10LBBX Carriage Bolt 1/4-20

Product Description

The VALUE COLLECTION CAI202502500-10LBBX is a 1/4-20 UNC carriage bolt with a 2-1/2-inch length under head and a square neck design. Manufactured from Grade 2 steel with a zinc-plated finish, this fastener provides basic corrosion resistance for general-purpose applications. The square neck seats into the material being fastened, preventing the bolt from spinning during installation without the need for a wrench on the bolt head. Licensed tradespeople and assembly technicians reach for this style of fastener when a smooth, rounded head profile is required on the visible face of a joint.

This carriage bolt is suited for light-duty structural and mechanical assemblies in residential construction, woodworking, HVAC equipment mounting, and general trade work. The zinc-plated finish is appropriate for dry to mildly humid indoor environments. The 1/4-20 UNC thread is one of the most common inch-series thread specifications, making mating hardware widely available. Sold individually, this bolt fits applications where a single fastener is needed for a repair or small assembly task.

Key Features

• 1/4-20 UNC thread for broad hardware compatibility
• 2-1/2-inch length under head for medium-depth fastening
• Square neck design prevents rotation during nut tightening
• Grade 2 steel construction for general-purpose load requirements
• Zinc-plated finish provides basic corrosion resistance in dry environments
• Smooth domed head delivers a flush, tool-free face on the accessible side of the joint

Compatibility

Designed as a general-purpose inch-series carriage bolt compatible with standard 1/4-20 UNC nuts and threaded hardware in wood, metal, and composite assemblies.

Installation Notes

Carriage bolts are typically installed by a mechanic, carpenter, or general tradesperson using a standard wrench or socket on the mating nut. Insert the bolt from the face side so the square neck pulls into the material and locks the bolt against rotation, then thread and tighten the nut from the back side. Do not use an impact driver directly on the dome head, as this can deform the neck seat. Always verify the mating material is thick enough to fully engage the square neck before finalizing torque.