Value Collection R52001679 5/16-18 Hex Lock Nut Grade 8

Product Description

The VALUE COLLECTION R52001679 is a 5/16-18 hex lock nut with a nylon insert locking style, manufactured from Grade 8 steel with a yellow zinc dichromate finish. The nylon insert grips the mating thread to resist loosening caused by vibration and torque cycling, making this nut a dependable choice in demanding mechanical assemblies. It measures 23/64 inches in height with a 1/2 inch width across flats and follows Unified National Coarse (UNC) thread standards with right-hand thread direction. Electricians, HVAC technicians, plumbers, and general mechanical contractors use this fastener type across a wide range of equipment installations and structural tie-ins.

This hex lock nut is suited for use in residential and light commercial mechanical systems where a secure, vibration-resistant threaded connection is required. Typical applications include equipment mounting, panel assembly, conduit support hardware, and piping bracket fastening. The Grade 8 steel construction and yellow zinc dichromate coating make it appropriate for indoor and mildly corrosive environments. Sold individually with a minimum order quantity of 50 units.

Key Features

• Nylon insert locking mechanism resists loosening under vibration and dynamic loads
• Grade 8 steel construction for high tensile strength in demanding applications
• Yellow zinc dichromate finish provides corrosion resistance for indoor and mild-exposure environments
• 5/16-18 UNC thread size with right-hand thread direction
• 23/64 inch height and 1/2 inch width across flats for standard hex tooling

Compatibility

Designed for use with 5/16-18 UNC threaded fasteners and bolts in standard inch-measurement mechanical assemblies.

Installation Notes

Install using a standard hex wrench or socket sized for 1/2 inch across flats. Ensure mating bolt threads are clean and free of debris before seating the nylon insert. The nylon insert is designed for single-use locking; once the nut has been torqued and removed, inspect the insert before reuse. Follow applicable mechanical codes and equipment manufacturer specifications for final torque requirements.