Value Collection R52001650 Hex Lock Nut 3/8 Inch

Product Description

The VALUE COLLECTION R52001650 is a nylon insert hex lock nut designed to resist loosening under vibration and torque. Made from Grade 2 steel with a zinc-plated finish, this fastener provides corrosion resistance for general-purpose applications. The nylon insert creates friction against the mating thread, maintaining clamp load without requiring a secondary locking device. At 3/16 inches in height with a 3/8-inch width across flats, this nut follows UNF (Unified Fine) thread standards and is suitable for right-hand thread engagement. Electricians, HVAC technicians, plumbers, and general trade professionals use this nut wherever vibration resistance is required.

This hex lock nut is suited for light- to medium-duty fastening in residential and commercial mechanical, electrical, and plumbing assemblies. It is commonly used in equipment panel assemblies, motor mounts, ductwork brackets, and pipe hanger hardware. The UNF thread form is standard across a wide range of machine screws and threaded rods used in trade applications. The zinc coating helps extend service life in mildly corrosive environments such as indoor HVAC equipment rooms and utility spaces.

Key Features

• Nylon insert locking mechanism resists loosening from vibration without secondary hardware
• Grade 2 steel construction provides reliable strength for general fastening loads
• Zinc-plated finish offers corrosion resistance in indoor and mildly humid environments
• UNF thread standard ensures broad compatibility with fine-thread fastener systems
• Right-hand thread direction follows standard installation practice
• Compact 3/16-inch height suits tight clearance applications

Compatibility

Designed as a standard UNF nylon insert hex lock nut for use with fine-thread machine screws and threaded rod in general mechanical, electrical, and HVAC assembly applications.

Installation Notes

Install with a standard 3/8-inch wrench or socket. Nylon insert lock nuts are intended for single-use applications — the locking torque of the nylon insert degrades with reuse, so replacement with a new nut is recommended after disassembly. Power down or de-energize any equipment before fastener service. Follow applicable mechanical codes and equipment manufacturer torque guidelines for the specific assembly.