Nylon Lock Nut

Nyloc nuts (also called nylon insert lock nuts) are hex nuts with a nylon collar insert that increases friction on the bolt threads, preventing loosening caused by vibration, movement, or temperature changes. They are widely used in machinery, automotive, aerospace, electronics, and household applications where a secure, long-lasting fastening is required.

There are various nyloc nut types, including type T nyloc nuts (thin profile for tight spaces), nylon ring nuts, and nylon self-locking nuts designed for different strength and dimensional requirements. The nylon insert deforms slightly when tightened, gripping the bolt threads without damaging them. This allows for reliable reusability under certain conditions, although for maximum safety, replacement is recommended in critical applications.

Materials range from carbon steel to stainless steel, brass, and even non-metallic options, with finishes such as zinc plating, hot-dip galvanizing, or black oxide to enhance corrosion resistance.

By combining the mechanical strength of metal with the anti-loosening property of nylon, nylon insert lock nuts provide an effective fastening solution for both static and dynamic loads.

Nyloc Nut and Nylon Insert Lock Nuts – Strength and Stability Combined

Our nyloc nut types feature a nylon insert that grips the bolt threads tightly, making them ideal for high-vibration environments like automotive assemblies, industrial machinery, and marine applications. Type T nyloc nuts are compact and suitable for space-limited installations, while nylon ring nuts offer added sealing benefits.

The nylon insert lock nut works by creating elastic friction against the bolt, which reduces the chance of back-off without the need for additional locking washers or adhesives. Available in carbon steel, stainless steel, and brass, with protective coatings, these nuts are designed for both strength and corrosion resistance.

Whether you need standard, thin, or heavy-duty locking nuts, we can supply the right product to match your application needs.