Value Collection R52001687 Hex Lock Nut 3/8-16

Product Description

The VALUE COLLECTION R52001687 is a 3/8-16 UNC hex lock nut with a nylon insert locking mechanism, manufactured from Grade B steel with a zinc-plated finish. The nylon insert creates interference with mating threads to resist loosening caused by vibration and torque. This fastener measures 29/64 inches high with a 9/16-inch width across flats, making it a standard-profile nut suited for general mechanical and structural assembly work. Electricians, plumbers, HVAC technicians, and general contractors use this nut wherever a reliable, vibration-resistant threaded connection is required on 3/8-16 fastener assemblies.

This hex lock nut is appropriate for residential and light commercial applications involving steel framing, equipment mounting, conduit support hangers, pipe strut assemblies, and mechanical panel work. The zinc plating provides corrosion resistance suitable for indoor and protected outdoor environments. Right-hand thread direction conforms to standard UNC fastener practice. This nut is sold individually but is subject to a minimum order quantity of 100 pieces per order.

Key Features

• Nylon insert locking style resists loosening under vibration without damaging mating thread surfaces
• 3/8-16 UNC right-hand thread — compatible with standard inch-series fasteners
• Grade B steel construction provides reliable strength for general mechanical assembly
• Zinc-plated finish offers corrosion resistance for indoor and protected environments
• 29/64-inch height and 9/16-inch width across flats conform to standard hex nut dimensions
• Width across points of 0.622 inches ensures fit with standard 9/16-inch wrenches and sockets

Compatibility

Designed for use with any standard 3/8-16 UNC threaded bolt or stud in inch-series mechanical assemblies across HVAC, plumbing, electrical, and general construction applications.

Installation Notes

Installation requires a standard 9/16-inch wrench or socket. Power down or de-energize any electrical equipment before securing fasteners on panel or conduit assemblies. Nylon insert lock nuts are single-use by design — once the nylon insert has been fully threaded past a bolt, the locking torque is reduced and the nut should not be reused in critical applications. Follow applicable mechanical codes and equipment manufacturer torque guidelines for the specific assembly.