Value Collection MSC-61180337 Heavy Hex Nut 5/16-18 Unc

Product Description

The VALUE COLLECTION MSC-61180337 is a heavy hex nut designed for use in bolted assemblies requiring a larger bearing surface than a standard hex nut provides. Threaded to a 5/16-18 UNC specification with a 2B class of fit, this nut is made from steel and features a right-hand thread direction. It measures 9/16 inches across the flats and 19/64 inches in height. The uncoated finish leaves the surface bare steel, suitable for applications where a coating is applied separately or where surface treatment is not required. Fastener technicians, maintenance mechanics, and general tradespeople use this nut in structural and mechanical assemblies.

This heavy hex nut is suited for general industrial, mechanical, and structural applications where a heavier nut profile is specified. The 5/16-18 UNC thread is a coarse-thread designation common in steel fabrication, equipment assembly, and maintenance work. The 2B thread fit class indicates a standard tolerance suitable for most general-purpose bolted connections. Applications include machinery frames, steel structures, and equipment where ASME or ASTM heavy hex fastener standards are referenced.

Key Features

• 5/16-18 UNC coarse-thread specification for broad compatibility with standard bolts and threaded rod
• Heavy hex profile provides greater bearing surface compared to standard hex nuts
• 2B class of fit meets standard tolerance requirements for general-purpose fastening
• Right-hand thread direction for conventional installation
• Uncoated steel construction suitable for secondary finishing or bare-steel applications

Compatibility

Designed as an OEM-style replacement or general-purpose heavy hex nut for use with 5/16-18 UNC bolts and threaded fasteners in industrial and mechanical assemblies.

Installation Notes

Installation is performed by maintenance mechanics or tradespeople using standard hex wrenches or nut drivers sized for a 9/16-inch across-flats dimension. Torque to the value specified by the equipment manufacturer or applicable structural standard for the fastener grade and joint type. Inspect mating threads before installation to confirm thread class compatibility. Do not mix thread standards or force engagement between mismatched fastener profiles.