Value Collection 30983 Carriage Bolt 5/8-11 1-1/2 in Grade 5

Product Description

The VALUE COLLECTION 30983 is a 5/8-11 UNC carriage bolt with a 1-1/2 inch length under the head and a square neck profile. Manufactured from Grade 5 steel with a zinc-plated finish, this fastener provides solid corrosion resistance for general-purpose structural and mechanical applications. The square neck seats into the material being fastened to prevent rotation during nut installation, eliminating the need for a wrench on the bolt head. This pack contains 25 bolts, making it suitable for job-site stock or batch fastening tasks handled by carpenters, millwrights, ironworkers, and general contractors.

This carriage bolt is appropriate for wood-to-wood, wood-to-metal, and light structural connections in both residential and commercial settings. Typical applications include framing assemblies, equipment mounting, dock and deck construction, trailer fabrication, and similar installations where a flush, rounded head profile is required on the visible face of the connection. The zinc-plated coating offers moderate protection against rust in dry to mildly humid environments.

Key Features

• 5/8-11 UNC thread size for compatibility with standard hex nuts and hardware
• 1-1/2 inch length under head suits shallow through-bolt applications
• Square neck profile resists rotation during torquing without a backup wrench
• Grade 5 steel construction meets medium-strength fastener requirements
• Zinc-plated finish provides corrosion resistance in indoor and sheltered outdoor environments
• Pack of 25 bolts supports batch installations and job-site stocking

Compatibility

Designed as a standard UNC carriage bolt for use with 5/8-11 hex nuts, flat washers, and lock washers in general structural and mechanical fastening applications.

Installation Notes

Installation is typically performed by carpenters, ironworkers, or general contractors using a standard wrench or impact driver on the mating nut. Always pre-drill a clean hole sized to allow the square neck to draw fully flush into the material, preventing bolt rotation during final torquing. Follow applicable building codes and structural specifications for fastener grade and spacing requirements. Do not exceed the shear or tensile load ratings specified for Grade 5 fasteners in the relevant design standard.