[2000 BULK] Hex Lock Nuts Nylon Inserts Steel Zinc 4-40 Buy Today

Hex Lock Nuts Nylon Inserts Steel Zinc 4-40 are precision locking nuts designed to prevent loosening due to vibration. Featuring a steel body with a zinc finish and a built-in nylon insert, these nuts deliver dependable performance in a wide range of assemblies.

The nylon insert creates a friction lock that bites into the mating bolt as it is tightened, providing a secure, reusable locking solution for 4-40 fasteners.

Key Features

Locking action: Nylon insert provides positive locking to resist vibration and loosening.

Material and finish: Steel with zinc plating for improved corrosion resistance and durability.

Size: Thread size 4-40 for standard 4-40 hardware.

Ideal Applications

Perfect for electronics, automotive, machinery, and general hardware applications where a reliable lock nut is essential and where repeated assembly and disassembly are expected.

Care and Maintenance

Inspect the nylon insert periodically; if wear or damage is evident, replace with a new nut to preserve locking performance. Store in a dry environment to prevent corrosion.

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State ofCalifornia to cause cancer and birth defects or other reproductive harm. For more information go tohttps://www.P65Warnings.ca.gov.