Value Collection 318480BR Heavy Hex Nut 2-4-1/2 Unc

Product Description

The VALUE COLLECTION 318480BR is a heavy hex nut designed for use with 2-inch, 4-1/2 TPI UNC threaded fastener assemblies. Manufactured from Grade 2 steel with a bright, uncoated finish, this nut measures 3-1/8 inches across flats and stands 1-31/32 inches tall. The right-hand thread pattern follows standard UNC specifications. Its heavy hex profile provides greater bearing surface area compared to standard hex nuts, making it suited for structural, industrial, and general mechanical applications where added load distribution is required. Plumbers, pipefitters, millwrights, and general contractors commonly specify heavy hex hardware for large-diameter bolted connections.

This heavy hex nut is used in structural steel connections, heavy equipment assembly, pipe flange bolting, and industrial machinery installations. The large diameter and heavy hex profile make it appropriate for high-load applications in both commercial and industrial settings. Grade 2 steel is a general-purpose carbon steel grade suitable for a wide range of non-critical bolted assemblies. This nut is sold individually and is compatible with any 2-inch UNC threaded bolt or stud of matching thread pitch.

Key Features

• Heavy hex profile provides increased bearing surface over standard hex nuts
• Grade 2 steel construction suitable for general-purpose fastening applications
• Right-hand UNC thread direction follows standard American fastener conventions
• Bright uncoated finish — no added coating that could affect dimensional tolerances
• 3-1/8 inch across-flats dimension accommodates standard heavy hex wrenching tools

Compatibility

Designed for use with 2-inch diameter, 4-1/2 TPI UNC threaded bolts and studs in heavy hex fastener assemblies.

Installation Notes

Installation is typically performed by millwrights, ironworkers, pipefitters, or general mechanics using standard heavy hex wrenches or impact tooling sized for 3-1/8 inch across flats. Always ensure the mating bolt or stud matches the 2-4-1/2 UNC thread specification before assembly. Follow applicable torque guidelines from the applicable structural or mechanical code for Grade 2 fasteners. Inspect threads for damage or contamination before installation.