Hillman Fasteners 180159 Lock Nut 1/2-13 Coarse 50 Pack

Product Description

The HILLMAN FASTENERS 180159 is a 1/2-13 coarse thread nylon insert lock nut designed to resist loosening under vibration and dynamic loads. The nylon insert collar deforms around the mating thread when driven, creating a friction-based locking action without the need for adhesives or secondary locking hardware. The zinc plated steel construction provides corrosion resistance suitable for general indoor and light-duty outdoor applications. Sold in a 50-piece pack, this nut is a standard fastener used across HVAC equipment assembly, plumbing rough-in work, electrical enclosure mounting, and mechanical installations where thread retention is required.

This lock nut is appropriate for residential and light commercial applications wherever a 1/2-13 UNC threaded fastener connection requires vibration resistance. Common install scenarios include equipment brackets, fan motor mounts, pipe support strut systems, and structural fastening in mechanical rooms. The 50-piece pack quantity suits service vehicles and job-site replenishment for technicians who regularly work with half-inch hardware.

Key Features

• Nylon insert collar provides friction-based thread locking without adhesives
• 1/2-13 coarse thread (UNC) for broad compatibility with standard hardware
• Zinc plated steel construction for corrosion resistance in general service environments
• 50-piece pack quantity for job-site or service truck stocking
• Resists loosening from vibration and mechanical shock

Compatibility

Designed as a standard replacement or stock fastener for any application requiring a 1/2-13 UNC coarse thread nylon insert lock nut in zinc plated steel.

Installation Notes

Nylon insert lock nuts are installed by hand-threading onto the mating bolt or stud, then driven to final torque with a wrench or socket following applicable project fastener specifications. Power down or de-energize any equipment before working on fastened assemblies in electrical or HVAC systems. Nylon insert lock nuts are generally intended for single-use service, as the nylon insert loses clamping effectiveness after removal and reinstallation. Follow applicable mechanical or structural codes for torque and fastener grade requirements on the specific installation.