Value Collection 30985 Carriage Bolt 5/8-11 2in Grade 5 Zinc

Product Description

The VALUE COLLECTION 30985 is a 5/8-11 UNC carriage bolt with a 2-inch length under head, manufactured from Grade 5 steel with a zinc-plated finish. The square neck seats flush against the work surface during installation, preventing rotation without the need for a wrench on the bolt head. This fastener is suited for structural and general-purpose bolted connections in construction, equipment assembly, and fabrication work. The zinc plating provides a baseline level of corrosion resistance for indoor and light outdoor applications. Installation typically requires a standard nut and washer, with tightening performed from the nut side only.

This carriage bolt is used in wood-to-wood, wood-to-metal, and light structural metal connections across residential construction, general fabrication, and mechanical assembly applications. The 5/8-11 thread size and 2-inch under-head length make it appropriate for mid-thickness material stacks where a flush, clean bolt-head appearance is required. Tradespeople working in carpentry, ironwork, and general mechanical maintenance commonly use this fastener size.

Key Features

• 5/8-11 UNC thread for broad compatibility with standard nuts and hardware
• 2-inch length under head suits mid-thickness material connections
• Square neck locks into material surface to prevent bolt rotation during torquing
• Grade 5 steel construction provides solid tensile and shear strength for structural use
• Zinc-plated finish offers corrosion resistance in dry and light-exposure environments

Compatibility

Designed as a standard UNC carriage bolt for use with any 5/8-11 hex nut and compatible washer in wood, metal, or composite material assemblies.

Installation Notes

A licensed tradesperson or qualified mechanic should ensure the square neck is fully seated into the material before applying torque to the nut. Power down or de-energize any adjacent equipment before working in confined or energized assemblies. Use appropriate torque practices per applicable industry standards; do not over-torque, as Grade 5 fasteners have defined proof load limits. Inspect the zinc-plated finish for damage before installation in moisture-prone areas.