Value Collection HNI81251 Hex Nut 1-1/4-7 Grade 8

Product Description

The VALUE COLLECTION HNI81251 is a 1-1/4-7 UNC hex nut manufactured from Grade 8 steel with a zinc yellow dichromate finish. Grade 8 steel provides high tensile strength suited for heavy-duty bolted connections in structural, mechanical, and industrial applications. The zinc yellow dichromate coating delivers corrosion resistance while meeting standard fastener finishing requirements. The right-hand thread conforms to Unified National Coarse thread standards. At 1-7/8 inches across the flats and 1-1/16 inches in height, this nut is sized for use with 1-1/4-inch diameter fastener assemblies. Electricians, plumbers, pipefitters, and mechanical contractors install this type of hardware when assembling equipment frames, pipe supports, and structural connections.

This hex nut is appropriate for residential and commercial mechanical installations where high-strength fasteners are required. Typical applications include equipment mounting, structural steel assembly, pipe support fabrication, and general industrial bolted connections requiring Grade 8 strength and corrosion-resistant finishing. The UNC thread standard ensures broad compatibility with standard 1-1/4-7 threaded rod and bolt stock commonly found in trade supply environments.

Key Features

• Grade 8 steel construction for high-strength bolted connections
• Zinc yellow dichromate finish for corrosion resistance
• 1-1/4-7 UNC right-hand thread configuration
• 1-7/8 inches across flats for standard wrench engagement
• 1-1/16 inches in height providing full thread engagement depth

Compatibility

Designed for use with standard 1-1/4-7 UNC threaded fasteners including bolts and threaded rod conforming to Unified National Coarse thread specifications.

Installation Notes

Installation should be performed by a qualified tradesperson using an appropriately sized wrench or socket matching the 1-7/8-inch across-flats dimension. Fastener assemblies should be inspected for thread condition and cleanliness before installation. Always follow applicable mechanical and structural codes when specifying Grade 8 hardware for load-bearing connections. Do not mix thread standards or grades within a single fastener assembly.