Value Collection MP39626 Hex Lock Nut 9/16-12 Grade 8

Product Description

The VALUE COLLECTION MP39626 is a 9/16-12 hex lock nut with a nylon insert locking mechanism, manufactured from Grade 8 steel in an uncoated finish. The nylon insert creates interference with the mating thread, resisting loosening caused by vibration and dynamic loading without the need for thread-locking compounds. At 41/64 inches in height with a 7/8-inch width across flats, this nut follows UNC thread standards and is designed for right-hand installation. It is suited for structural and mechanical fastening applications where a reliable, reusable lock nut is required.

This hex lock nut is used in general industrial, mechanical, and construction fastening applications. The Grade 8 steel construction makes it appropriate for high-strength bolted assemblies in equipment frames, brackets, machinery, and structural connections. Tradespeople and maintenance technicians working on heavy equipment, HVAC frameworks, plumbing supports, and electrical enclosures commonly use this fastener type. The nylon insert remains effective through multiple installation and removal cycles, making it a practical choice for serviceable assemblies.

Key Features

• Nylon insert locking style resists loosening under vibration without thread-locking compounds
• Grade 8 steel construction for high-strength fastening applications
• 9/16-12 UNC thread size with right-hand thread direction
• Uncoated finish suitable for use in dry or protected environments
• 41/64-inch height and 7/8-inch width across flats for standard wrench fitment

Compatibility

Designed as a standard UNC 9/16-12 hex lock nut compatible with any 9/16-12 UNC-threaded bolt or stud requiring a nylon insert locking nut.

Installation Notes

Install using a standard 7/8-inch wrench or socket. Ensure the mating bolt or stud is clean and free of damage before threading the nut. Do not exceed the rated torque range for Grade 8 hardware as specified by applicable mechanical or structural codes. The nylon insert may be reused for a limited number of cycles; replace the nut if the insert shows wear or no longer provides adequate resistance.