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Full Hex Nut ISO 7040

Product Description

Nylon insert locknuts are produced by forming and tapping nuts that include a tubular feature on top that receives a nylon ring. The tubular top is crimped to capture and hold the ring from spinning while the mating part self threads into the nylon during assembly. The nylon ring size and crimping process to secure the ring must be controlled to tight tolerances.


The Full Hex ISO 7040 locknut is commonly used in many general purpose applications. Produced in high volumes, the smaller diameter products are relatively inexpensive. As compared to All-Metal Locknuts, Nylon Insert Locknuts are less damaging to mating threads, but have heat limitations and the nylon develops memory and prevailing torque erodes.

Available Sizes

Nut Type Class Lock Size Thread Availability

Full Nylon Hex 8 Top M5 - M36 Coarse Contact for Current Status

Full Nylon Hex 10 Top M5 - M36 Coarse Contact for Current Status