S-95140A167 7/8"-9 Hex Nuts

Key Features & Benefits at a Glance

• Superior load-bearing capacity with Grade 5 steel construction, ensuring reliable performance in demanding applications
• Enhanced vibration resistance through left-hand threading, providing secure fastening where reverse rotation is a concern
• Quick and easy installation with external hex drive design and coarse UNC threads, reducing assembly time
• Precise thread engagement with Class 2B fit, minimizing cross-threading and ensuring consistent torque performance
• Long-term durability in harsh environments thanks to robust steel material and standard hex profile
• Compliance with international regulations including RoHS 3 and REACH, making them suitable for global industrial supply chains
• Versatile heavy-duty application with 1 5/16" width and 3/4" height, offering substantial grip surface for high-torque requirements

Professional Applications & Engineering Value

This Grade 5 steel left hand hex nut addresses critical engineering challenges in industries where counter-clockwise rotational forces are prevalent. The 7/8"-9 UNC coarse thread configuration provides excellent resistance to loosening under vibration, making it ideal for rotating machinery, conveyor systems, and automotive assemblies. Manufactured from high-strength steel, this external hex nut maintains structural integrity under heavy loads while the Class 2B thread fit ensures smooth engagement without galling. Its left-hand threading serves as a safety feature in applications where standard right-hand threads might inadvertently loosen, providing essential reverse-thread security for industrial equipment, agricultural machinery, and specialized manufacturing systems requiring reliable heavy-duty fastening solutions.

Specification Summary & Compliance

This hex nut features 7/8"-9 UNC coarse threads with Class 2B thread fit for precise dimensional accuracy. Manufactured to industrial standards for Grade 5 steel fasteners, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety. The nut's dimensional specifications include 1 5/16" width across flats and 3/4" height, providing standardized compatibility with corresponding wrench sizes and mating components.