Value Collection CAI207502000-020BX Carriage Bolt 3/4-10 2in

Product Description

The VALUE COLLECTION CAI207502000-020BX is a 3/4-10 carriage bolt with a 2-inch length under head, manufactured from Grade 2 steel with a zinc-plated finish. The square neck under the domed head prevents rotation during tightening, eliminating the need for a wrench on the bolt side. This fastener meets ASTM A307 standards and is sized for use in general structural and mechanical assembly applications. It is commonly installed by contractors, millwrights, and maintenance technicians working on wood-to-wood or wood-to-metal connections. The zinc plating provides a basic level of corrosion resistance suitable for dry or mildly protected environments.

This carriage bolt is suited for light structural fastening in residential construction, furniture assembly, equipment mounting, and general fabrication work. The 3/4-10 UNC thread size is a standard coarse-thread designation, compatible with standard 3/4-inch nuts and washers. Applications include timber framing, deck construction, machinery guards, and utility connections where a smooth, rounded head profile is required on the exposed face.

Key Features

• Square neck locks into material during installation, preventing bolt rotation without a secondary tool
• Grade 2 steel construction meets ASTM A307 fastener standards
• Zinc-plated finish provides basic corrosion resistance for general indoor or protected outdoor use
• 3/4-10 UNC coarse thread for compatibility with standard nuts and hardware
• 2-inch length under head suits medium-thickness material stacks

Compatibility

Designed as a standard UNC carriage bolt compatible with 3/4-10 threaded nuts, coupling nuts, and washers conforming to inch-system fastener standards.

Installation Notes

Installation is typically performed with a standard wrench or socket applied to the mating nut while the square neck seats into the substrate to resist rotation. Pre-drill a clean hole sized to allow the square neck to draw flush as the nut is torqued. Follow applicable building codes and structural specifications when using fasteners in load-bearing assemblies. Inspect the zinc coating for damage before installation in moisture-prone environments and consider a coated or stainless alternative where sustained exposure is expected.