Value Collection CAI203102000-050B Carriage Bolt 5/16-18 2in

Product Description

The VALUE COLLECTION CAI203102000-050B is a 5/16-18 UNC carriage bolt with a 2-inch length under head, square neck, and zinc-plated Grade 2 steel construction. This fastener meets ASTM A307 standards and is designed for general-purpose bolting applications where a smooth, rounded head and self-locking square neck are required. The zinc finish provides basic corrosion resistance for indoor and light outdoor use. Tradespeople, contractors, and maintenance professionals use carriage bolts like this one when securing wood-to-wood or wood-to-metal connections where the head must sit flush and resist rotation during tightening.

This carriage bolt is suited for light structural and general construction applications including framing, decking, fencing, and equipment mounting. The 5/16-18 UNC thread size is widely used in residential and light commercial construction. The square neck seats into pre-drilled square or round holes in wood to prevent the bolt from spinning as the nut is tightened from the opposite side. Sold in multiples of 50 per order, this fastener is a practical stock item for contractors and maintenance crews managing routine hardware inventory.

Key Features

• 5/16-18 UNC thread for broad hardware compatibility
• 2-inch length under head suits standard wood-to-wood and wood-to-metal connections
• Square neck design resists rotation during installation without requiring a wrench on the head
• Grade 2 steel meets ASTM A307 requirements for general-purpose fastening
• Zinc-plated finish offers basic corrosion resistance for light-duty environments
• Sold in minimum order quantity of 50 for efficient jobsite or shop stocking

Compatibility

Designed as a standard 5/16-18 UNC carriage bolt for general-purpose construction and maintenance fastening applications requiring ASTM A307-compliant hardware.

Installation Notes

Installation typically requires a pre-drilled hole sized to allow the square neck to seat flush and prevent rotation. A standard wrench or socket is used on the nut side only — no tool is applied to the rounded head. Follow applicable building codes and structural load requirements when using in framing or load-bearing assemblies. Inspect zinc coating for damage before installation in wet or corrosive environments.