STAINLESS STEEL NYLON INSERT NUTS HIGH TYPE DIN 982

Nylon Insert Nuts – High Type FAQs

What is a high type nylon insert nut?

A high type nylon insert nut is a hexagonal self‑locking nut containing a nylon insert, similar in function to a standard nylon insert (nyloc) nut, but with an increased overall height.
The increased height provides greater thread engagement compared to standard nylon insert nuts.

How do high type nylon insert nuts work?

High type nylon insert nuts use a nylon locking insert positioned at the top of the nut. As the nut is tightened, the nylon insert deforms around the bolt threads, creating prevailing torque that helps prevent loosening under vibration.
The additional nut height allows more threads to engage while maintaining the locking function.

When are high type nylon insert nuts typically used?

High type nylon insert nuts are commonly used:

• Where greater thread engagement is required than a standard nyloc nut provides
• In applications subject to vibration or movement
• Where a secure locking nut is required without additional locking devices
• In mechanical and general engineering assemblies

They are often selected where a standard nylon insert nut does not provide sufficient engagement.

Are high type nylon insert nuts suitable as a primary fastening nut?

Yes. High type nylon insert nuts are suitable for use as primary fastening nuts, provided they are correctly selected for the application. The nut body carries the load, while the nylon insert provides resistance to loosening.

Can high type nylon insert nuts be reused?

High type nylon insert nuts may be reused, provided the nylon insert still offers sufficient resistance to rotation. Repeated use will reduce the effectiveness of the nylon insert, and the nut should be replaced if the prevailing torque is noticeably reduced.

Are high type nylon insert nuts suitable for high‑temperature applications?

No. Due to the nylon insert, high type nylon insert nuts are not suitable for high‑temperature applications where the nylon could soften or degrade. Alternative locking methods should be used for elevated‑temperature environments.

What sizes and thread types do you supply?

We supply high type nylon insert nuts in metric thread sizes only.

What materials are available?

Our range of high type nylon insert nuts is available in:

• Stainless steel A2
• Stainless steel A4

Are high type nylon insert nuts known by any other names?

High type nylon insert nuts may also be referred to as:

• High type nyloc nuts
• High profile nylon insert nuts
• High nylon lock nuts

All describe the same self‑locking nut design with an increased height and nylon insert.

How do I choose the correct high type nylon insert nut?

When selecting a high type nylon insert nut, consider:

• Correct metric thread size and pitch to match the bolt
• Required thread engagement, particularly where a standard nyloc nut is too short
• Operating temperature, ensuring it is suitable for a nylon insert
• Material selection (A2 or A4) based on corrosion resistance requirements