Value Collection MSC-67472803 Hex Nut 1-1/4-12 Grade 8

Product Description

The VALUE COLLECTION MSC-67472803 is a 1-1/4-12 UNF hex nut manufactured from SAE J995 Grade 8 steel with a zinc yellow dichromate finish. Grade 8 steel provides high tensile strength suitable for heavy-duty bolted assemblies in demanding mechanical and structural applications. The zinc yellow dichromate coating delivers corrosion resistance while maintaining dimensional integrity under load. At 1-7/8 inches across flats and 1-1/16 inches in height, this nut meets ANSI/ASME B18.2.2 standards, making it a reliable choice for engineers, millwrights, and maintenance technicians working with fine-thread fastener assemblies.

This hex nut is suited for applications requiring a fine unified thread pitch in machinery, heavy equipment, automotive, agricultural, and industrial structural assemblies. The 1-1/4-12 UNF thread specification is common in high-load applications where fine-thread engagement provides superior clamping force and resistance to vibration-induced loosening. It is appropriate for use in both original equipment assembly and field repair scenarios where Grade 8 hardware is specified.

Key Features

• Grade 8 steel construction with Rockwell C26-C36 hardness rating for high-strength applications
• 1-1/4-12 UNF right-hand thread, fine pitch for superior clamping force and vibration resistance
• Zinc yellow dichromate finish provides corrosion protection
• Meets ANSI/ASME B18.2.2 fastener dimensional standard
• 1-7/8 inches across flats, compatible with standard hex tooling
• Width across points of 2.165 inches for precise fit verification

Compatibility

Designed for use with 1-1/4-12 UNF Grade 8 bolts and threaded rod in heavy-duty mechanical and structural assemblies conforming to ANSI/ASME B18.2.2 specifications.

Installation Notes

Installation should be performed by qualified mechanics or millwrights familiar with high-strength fastener assemblies. Always ensure the mating bolt or stud is also rated Grade 8 or higher to maintain the integrity of the joint. Use a properly sized 1-7/8-inch hex wrench or socket and follow applicable torque specifications provided by the equipment manufacturer or relevant engineering standards. Inspect threads for damage or contamination before assembly to prevent galling or cross-threading.