Value Collection MSC-45757655 Hex Nut 5/8-11 A194 2H

Product Description

The VALUE COLLECTION MSC-45757655 is a heavy hex nut rated to ASTM A194 Grade 2H specifications, designed for high-strength bolted assemblies in industrial, structural, and mechanical applications. It is manufactured from carbon steel with a zinc yellow dichromate finish that provides corrosion resistance in demanding service environments. The nut features a 5/8-11 UNC thread form with right-hand thread direction, a width across flats of 1.0625 inches, and a height of approximately 0.609 inches (39/64 inches). At 0.12 pounds per unit, this nut is suited for use with high-strength bolts and studs where ASTM A194 Grade 2H compliance is required.

This hex nut is commonly used in pressure vessel flange connections, structural steel bolting, piping systems, and heavy industrial equipment assembly. A194 Grade 2H heavy hex nuts are frequently specified alongside ASTM A193 B7 threaded studs or grade 8 bolts in applications that require elevated proof load and hardness values. They are installed by millwrights, pipefitters, ironworkers, and mechanical contractors on both new construction and maintenance projects.

Key Features

• ASTM A194 Grade 2H heavy hex nut — meets proof load and hardness requirements for high-strength bolting
• 5/8-11 UNC right-hand thread for standard coarse-thread compatibility
• Zinc yellow dichromate finish for corrosion protection in industrial environments
• Width across flats of 1.0625 inches for use with standard heavy hex wrenching tooling
• Height of 39/64 inches (approximately 0.609 inches) for full thread engagement
• Does not meet military specifications — suitable for commercial and industrial use

Compatibility

Designed as a standard 5/8-11 UNC heavy hex nut for use with corresponding grade bolts, studs, and threaded rod in high-strength industrial bolting applications requiring ASTM A194 Grade 2H compliance.

Installation Notes

Installation should be performed by qualified millwrights, pipefitters, or mechanical contractors following applicable torque specifications from the fastener manufacturer or project engineer. Always confirm thread compatibility and bolt grade before assembly. Clean and inspect mating threads before installation to ensure proper engagement and load distribution. Refer to ASME, ASTM, or applicable industry standards for torque and assembly requirements specific to the application.