Value Collection CAI203101750-050B Carriage Bolt 5/16-18

Product Description

The VALUE COLLECTION CAI203101750-050B is a Grade 2 steel carriage bolt with a zinc-plated finish, sized at 5/16-18 thread and 1-3/4 inches length under head. It features a square neck that seats flush into the material to prevent rotation during fastening, eliminating the need for a wrench on the bolt side. The zinc coating provides basic corrosion resistance for general-purpose indoor and sheltered applications. This bolt conforms to ASTM A307 standards. Plumbers, HVAC techs, electricians, and general contractors install these fasteners when connecting structural components, mounting brackets, or assembling equipment frames.

This carriage bolt is suited for light-duty structural and mechanical assembly work in residential and commercial settings. Typical applications include securing wood-to-wood connections, mounting equipment to framing lumber, and assembling utility structures. The UNC thread form is standard across North American fastener hardware, making compatible nuts and hardware widely available. This bolt is sold in a minimum order quantity of 50 pieces per order.

Key Features

• Square neck locks into material to prevent spinning during nut tightening
• Grade 2 steel construction meets ASTM A307 fastener standards
• Zinc-plated finish for basic corrosion resistance in sheltered environments
• 5/16-18 UNC thread for broad hardware compatibility
• 1-3/4 inch length under head for moderate material thickness

Compatibility

Designed as a standard-duty UNC carriage bolt suitable for general structural assembly applications using 5/16-18 threaded hardware.

Installation Notes

Installation requires a standard wrench or socket to drive the mating nut while the square neck holds the bolt stationary in the substrate. Pre-drill the correct clearance hole diameter to allow the square neck to seat properly and prevent bolt rotation. Power down or de-energize any nearby electrical components before working in confined equipment spaces. Follow applicable building and mechanical codes for fastener selection when used in load-bearing or structural connections.