Nyloc Nuts

Precision-Manufactured Nylon Insert Lock Nuts

Pattern Fasteners manufactures custom Nyloc nuts for demanding industrial and engineering applications.

Also known as nylon insert lock nuts, Nyloc nuts incorporate a nylon collar that grips the mating thread. This creates additional resistance to rotation and helps prevent the nut from loosening when exposed to vibration or movement.

While standard Nyloc nuts are readily available, many assemblies require non-standard dimensions, unusual thread forms, specialist materials or application-specific modifications. We manufacture these components to customer drawings, existing samples and bespoke specifications.

How Do Nyloc Nuts Work?

As the mating thread enters the nylon insert, it forms a close interference fit within the polymer.

The resulting friction helps the nut resist unintentional rotation while allowing it to be installed using conventional tools. This makes Nyloc nuts suitable for assemblies exposed to vibration, repeated movement and changing loads.

The required nut design, insert material and performance specification should always be selected according to the operating environment and application.

Custom and Special Nyloc Nuts

We manufacture Nyloc nuts for applications where standard off-the-shelf products are unsuitable.

Options may include:

• Standard and non-standard metric threads

• Imperial thread forms

• Fine-pitch threads

• UNC and UNF threads

• BA and other specialist thread forms

• Bespoke widths across flats

• Custom nut heights and profiles

• Modified nylon inserts

• Tight dimensional tolerances

• Special mechanical properties

• Small batches and repeat production quantities

Our team can work from your technical drawing, existing component or individual specification.

Materials and Finishes

Custom Nyloc nuts can be produced in a range of materials selected to meet the mechanical, environmental and corrosion-resistance requirements of the application.

Material options may include:

• Carbon steel

• Alloy steel

• A2 and A4 stainless steel

• Specialist stainless steel grades

• Brass

• Non-ferrous materials

• High-performance alloys

A variety of protective and decorative finishes can also be specified, including:

• Bright zinc plating

• Chemical black

• Phosphate coatings

• Passivation

• Customer-specified coatings and treatments

Material grades, finishes and insert requirements can be incorporated into the complete manufacturing specification.

Reliable Locking Performance

The locking performance of a Nyloc nut depends on several factors, including the thread dimensions, insert design, material properties and operating conditions.

Careful control throughout manufacture helps ensure consistent thread engagement and dependable resistance to loosening.

Custom Nyloc nuts may be suitable for assemblies exposed to:

• Vibration

• Dynamic loading

• Repeated movement

• Thermal cycling

• Regular maintenance

• Controlled assembly and disassembly

Where temperature, chemical exposure or repeated reuse is a concern, our team can review the application and discuss appropriate options.

Applications for Custom Nyloc Nuts

Special and non-standard Nyloc nuts are used throughout a wide range of industries, including:

• Automotive and motorsport

• Aerospace and defence

• Energy

• Oil and gas

• Construction

• Heavy engineering

• Machinery manufacturing

• Electronics

• Precision assemblies

Each component can be manufactured around the dimensional, mechanical and environmental requirements of its intended application.

Manufactured to Your Specification

Pattern Fasteners has manufactured special fasteners and precision-engineered components in the West Midlands since 1981.

Customers choose us for:

• Nyloc nuts manufactured to drawings or samples

• Standard and non-standard thread forms

• Bespoke dimensions and nut profiles

• Specialist materials and finishes

• Custom nylon insert requirements

• Close-tolerance manufacturing

• Small batches and repeat production

• Experienced UK-based technical support

Request a Quote for Custom Nyloc Nuts

Need a non-standard Nyloc nut for a specialist engineering application?

Send us your drawing, sample or specification. Our experienced team will review your thread, material, dimensional, finish and production requirements before providing a competitive quotation.

[Request a Quote]