1/2″-13 Lock Nuts Nylon Insert Heavy Hex Full Height Steel Zinc Plated (100 / Pkg.) Best Seller

Hex Lock Nuts NU Nylon Inserts Steel Zinc 1/2″-13 are built for secure, vibration-resistant fastening in a compact hex nut profile. These nylon insert lock nuts—often called nylock nuts—combine a hardened steel core with a heat-resistant nylon insert to provide reliable locking action that resists loosening under dynamic loads.

Key features

Locking action comes from the NU nylon insert, which grips the bolt threads to prevent loosening from vibration and shock.

Durable steel with zinc finish delivers corrosion resistance and long service life in harsh environments.

Hex nut design enables easy installation and removal with standard wrenches and sockets.

Thread size 1/2″-13 provides compatibility with 1/2-inch bolts and common hardware standards.

Versatile applications ideal for automotive, machinery, equipment, and general fastener assemblies.

Specifications

Material: Steel

Finish: Zinc plating

Type: Nylon insert lock nut (NU)

Thread: 1/2″-13

Style: Hex lock nut

Enhance reliability in high-vibration environments with these nylon insert lock nuts. Add them to your toolkit today and ensure secure, maintenance-free fastenings across your projects.