Nylon Lock Nut

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About Nylon Lock Nut

Nylon insert lock nuts carry a nylon collar that the thread cuts into, gripping by elasticity rather than clamp load. Locking is consistent and independent of preload, which is why they dominate vibrating applications.

Standards DIN 985 · ISO 10511 · DIN 982

Zinc-plated steel

The low cost standard.

304 stainless

Wet and outdoor service.

316 stainless

Marine and chemical.

How to choose

• The nylon collar is limited to about 120 C — use all-metal lock nuts above that.
• Replace after a few removals; the collar wears out.
• The bolt must protrude through the collar or there is no locking at all.