Value Collection 306074BR Hex Nut Grade 8 Steel

Product Description

The VALUE COLLECTION 306074BR is a heavy-duty hex nut designed for high-strength fastening applications in industrial, construction, and mechanical assembly work. Manufactured from Grade 8 steel with a zinc yellow dichromate finish, this nut delivers excellent corrosion resistance alongside the elevated tensile strength required by demanding structural and equipment installations. It features a 2-4-1/2 UNC (Unified National Coarse) right-hand thread, measures 3-1/8 inches across the flats, and stands 1-23/32 inches in height. Plumbers, pipefitters, millwrights, and general contractors typically install fasteners of this class when working with large-diameter bolting on pumps, flanges, frames, and structural steel connections.

This nut is suited for heavy mechanical and structural applications where a Grade 8 rating is specified. Its large thread size makes it appropriate for high-load bolting scenarios in industrial plants, water treatment facilities, mechanical rooms, and commercial construction. The zinc yellow dichromate finish provides a recognizable visual indicator of the Grade 8 designation while offering a base level of corrosion protection for both indoor and moderately exposed environments. It is sold individually, making it practical for low-quantity replacement or repair needs.

Key Features

• Grade 8 steel construction for high-strength, high-torque fastening requirements
• Zinc yellow dichromate finish provides corrosion resistance and serves as a Grade 8 visual identifier
• 2-4-1/2 UNC right-hand thread conforms to Unified National Coarse thread standards
• 3-1/8 inches across flats for use with standard heavy-duty wrenching tools
• 1-23/32 inches height provides substantial thread engagement depth
• Sold in single-unit quantity for targeted replacement applications

Compatibility

Designed as a standard UNC hex nut for use with Grade 8 or equivalent hex bolts and threaded rod with a 2-4-1/2 UNC thread specification. Confirm thread pitch, grade, and finish requirements against the mating fastener and application specification before installation.

Installation Notes

Installation of large-diameter structural fasteners of this grade should be performed by qualified tradespeople following applicable codes, including AISC and OSHA fastening standards where applicable. Always verify that the mating bolt grade and thread specification match this nut before assembly. Torque to the value specified by the equipment manufacturer or structural engineer for the given bolt diameter and grade. De-energize and lock out any equipment before replacing fasteners on mechanical assemblies.