Value Collection MSC-67481440 Hex Nut 3/8-16 A194 Grade 2H

Product Description

The VALUE COLLECTION MSC-67481440 is a 3/8-16 heavy hex nut manufactured from A194 Grade 2H steel with a bright, uncoated finish. It is designed for high-strength bolted assemblies where elevated tensile and proof-load requirements apply. The A194 Grade 2H designation indicates a medium-carbon steel nut heat-treated to a hardness range of 24 to 35 HRC, making it well suited for structural connections, pressure vessel flanges, and heavy industrial fastening applications. Licensed tradesmen, maintenance mechanics, and industrial assemblers install this fastener as part of stud-and-nut assemblies governed by ASME standards.

This hex nut is used in industrial, commercial, and heavy construction applications where ASME B18.2.2 dimensional compliance and ASME B1.1 thread form are required. The UNC thread form and 2B fit class provide reliable engagement with standard 3/8-16 threaded studs and bolts. Typical install scenarios include pipe flange connections, structural steel work, heavy equipment assembly, and pressure boundary fastening where elevated proof load and hardness specifications are specified by engineering or code.

Key Features

• A194 Grade 2H steel construction with 24 to 35 HRC hardness for high-strength fastening
• 3/8-16 UNC thread with 2B fit class for standard engagement with inch-series bolts and studs
• 11/16 inch (0.6875 inches) width across flats for use with standard open-end and box wrenches
• 23/64 inch height per ASME B18.2.2 dimensional standard
• Bright, uncoated finish — no added coating thickness to affect thread fit
• Right-hand thread direction per ASME B1.1

Compatibility

Designed for use with 3/8-16 UNC threaded bolts, studs, and threaded rod conforming to ASME B1.1 standards. Dimensionally compliant with ASME B18.2.2 heavy hex nut specifications.

Installation Notes

Installation is performed by maintenance mechanics, pipefitters, ironworkers, or other qualified tradespeople working on bolted assemblies. Always de-energize, depressurize, or otherwise isolate the assembly before removing or replacing fasteners in pressurized or live systems. Use a properly sized wrench matched to the 11/16 inch across-flats dimension to avoid rounding the nut. Torque to the value specified by the applicable engineering drawing, code, or fastener supplier data sheet — no torque value is specified for this part in the available product data.