Value Collection CAI204303500-025BX Carriage Bolt 7/16-14

Product Description

The VALUE COLLECTION CAI204303500-025BX is a 7/16-14 UNC carriage bolt with a 3-1/2 inch length under head and a square neck drive style. Manufactured from Grade 2 steel with a zinc-plated finish, this fastener meets ASTM A307 standards for general-purpose structural and mechanical applications. The square neck seats into pre-drilled square holes in wood or metal to prevent rotation during installation, eliminating the need for a second wrench on the bolt head. This box contains 25 bolts. The zinc coating provides baseline corrosion resistance suitable for dry or mildly humid environments.

This carriage bolt is suited for general construction, woodworking, and light structural assembly where UNC thread fasteners are specified. Typical applications include securing timber framing connections, attaching metal brackets to lumber, and assembling equipment frames. The 7/16-14 thread size and ASTM A307 Grade 2 classification make these bolts appropriate for non-critical structural connections in residential and light commercial work. Installers working with treated lumber or outdoor wood should evaluate whether a higher-corrosion-resistance finish is required for the specific exposure environment.

Key Features

• 7/16-14 UNC thread for compatibility with standard inch-series nuts and tapped holes
• 3-1/2 inch length under head for use with thicker lumber or stacked material connections
• Square neck design locks into substrate to prevent bolt rotation during torquing
• Grade 2 steel construction meets ASTM A307 fastener standard
• Zinc-plated finish provides corrosion resistance in dry to mildly humid conditions
• Box quantity of 25 reduces per-unit cost on multi-fastener jobs

Compatibility

Designed for use with standard 7/16-14 UNC hex nuts and washers in general-purpose structural and mechanical fastening applications requiring ASTM A307 Grade 2 carriage bolts.

Installation Notes

Installation is performed with a standard wrench or socket on the nut side; no tool is applied to the domed head. Ensure the square neck is fully seated in the mating hole before tightening to prevent spin-out. Follow applicable building codes and connection schedules for structural applications. Verify that the zinc-plated finish is adequate for the exposure category before installation in exterior or wet environments.