Hillman Fasteners 180153 3/8-16 Nylon Insert Lock Nut 100 Pack

Product Description

The HILLMAN FASTENERS 180153 is a nylon insert lock nut designed to resist loosening caused by vibration and torque in mechanical and structural assemblies. The 3/8-16 coarse thread pattern provides reliable engagement in standard threaded applications. A zinc plated steel body delivers corrosion resistance suitable for general indoor and light-duty outdoor use. The nylon insert creates friction against the mating fastener thread, maintaining clamp load without the need for thread-locking compounds. This fastener is a standard item for HVAC techs, plumbers, electricians, and general contractors who need a dependable prevailing-torque locking solution. Sold in a 100-piece pack.

The 180153 lock nut is suited for residential and light commercial installation work where vibration resistance is required. Common applications include equipment mounting, ductwork supports, pipe hanger assemblies, electrical enclosure hardware, and general mechanical fastening tasks. The coarse 3/8-16 thread mates with standard SAE fasteners widely used across HVAC, plumbing, and electrical trades. The 100-piece pack format is practical for service vans and shop stock.

Key Features

• 3/8-16 coarse thread for compatibility with standard SAE threaded hardware
• Nylon insert provides prevailing-torque resistance without thread-locking compounds
• Zinc plated steel construction offers corrosion resistance for general use
• 100-piece pack suitable for shop stock or service van inventory
• Resists loosening from vibration and dynamic loading

Compatibility

Designed as a standard 3/8-16 coarse thread nylon insert lock nut suitable for use with any 3/8-16 threaded bolt or stud in general mechanical, HVAC, plumbing, and electrical fastening applications.

Installation Notes

Install using a standard wrench or socket appropriate for the nut size. Nylon insert lock nuts are intended for single-use applications — the nylon insert loses prevailing-torque effectiveness after removal and should not be reused in critical joints. Ensure the mating bolt thread is clean and free of debris before installation. No special tools or trade licenses are required, but follow applicable mechanical codes for structural or pressure-bearing connections.