Value Collection -30985-1 Carriage Bolt 5/8-11 2-1/4 in 25pk

Product Description

The VALUE COLLECTION -30985-1 is a 5/8-11 UNC carriage bolt with a 2-1/4 inch length under head and a square neck bearing surface. Manufactured from Grade 5 steel with a zinc-plated finish, this bolt provides solid tensile strength and basic corrosion resistance for general structural and mechanical fastening applications. The square neck locks into a mating hole to prevent rotation during nut tightening, eliminating the need for a wrench on the bolt head. This package contains 25 bolts, making it suitable for larger assembly jobs or stocking a service vehicle.

Carriage bolts in this thread size and length are commonly used in wood-to-wood and wood-to-metal connections, including framing, decking, equipment mounting, and utility structures. The 5/8-11 thread is a standard UNC coarse thread, widely used across construction and light industrial trades. The zinc-plated finish offers moderate protection in dry or semi-exposed indoor environments. Tradespeople working in HVAC equipment installation, electrical utility work, plumbing support structures, and general construction will find this bolt size frequently specified in structural fastening details.

Key Features

• 5/8-11 UNC coarse thread for broad tool and hardware compatibility
• 2-1/4 inch length under head suits medium-thickness assemblies
• Square neck design prevents bolt rotation during installation
• Grade 5 steel construction provides reliable tensile and shear strength
• Zinc-plated finish adds corrosion resistance for dry and semi-exposed conditions
• Sold in a 25-count package to support batch fastening tasks

Compatibility

Designed as a standard UNC carriage bolt for use in wood, metal, and composite structural connections where a 5/8-11 thread and 2-1/4 inch under-head length are specified.

Installation Notes

Installation is typically performed by carpenters, ironworkers, electricians, or HVAC technicians depending on the application. Insert the bolt through a pre-drilled hole sized to accept the square neck, which should seat flush to prevent spinning. Tighten the nut from the opposite side using an appropriately sized wrench or socket; do not over-torque, as Grade 5 fasteners have defined proof load limits. Follow applicable structural or mechanical codes, such as IBC or AISC guidelines, when used in load-bearing connections.