Value Collection MP39622 Hex Lock Nut 5/16-18 Grade 8

Product Description

The VALUE COLLECTION MP39622 is a 5/16-18 UNC hex lock nut with a nylon insert locking style, manufactured from Grade 8 steel with an uncoated finish. The nylon insert creates interference with mating threads to resist loosening caused by vibration and torque. This fastener measures 11/32 inches in height with a 1/2-inch width across flats and features a right-hand thread direction. It is suited for general mechanical assembly applications where a reliable, reusable prevailing-torque locking nut is required without the need for thread-locking compounds.

This hex lock nut is used in structural and mechanical fastening applications across industrial, commercial, and trade settings. Typical installations include equipment mounting, bracket assemblies, and machine framing where vibration resistance is a priority. The Grade 8 steel construction makes it appropriate for higher-strength fastening requirements in demanding service environments. This nut is sold individually with a minimum order quantity of 50 units.

Key Features

• Nylon insert locking style resists loosening under vibration without adhesives
• Grade 8 steel construction for high-strength fastening applications
• 5/16-18 UNC thread size with right-hand thread direction
• Uncoated finish suitable for use where additional coating is not required
• 11/32-inch height and 1/2-inch width across flats for standard hex tooling

Compatibility

Designed as a standard UNC prevailing-torque hex lock nut compatible with 5/16-18 right-hand threaded fastener assemblies in inch-measurement applications.

Installation Notes

Installation is performed with standard hex wrenches or sockets sized for a 1/2-inch width across flats. Nylon insert lock nuts are intended for use on fully threaded studs or bolts and should be run down by hand initially to verify thread engagement before applying tool torque. De-energize or shut down any powered equipment before servicing fastened assemblies. Nylon insert lock nuts may be reused a limited number of times before the insert loses its prevailing-torque effectiveness; inspect the insert before reuse.