Flange Nuts

Custom Flange Nuts

Pattern Fasteners manufactures custom flange nuts and special flanged nuts for engineering, machinery and industrial applications.

A flange nut incorporates an enlarged base beneath the nut body, helping to spread the clamping load over a wider surface area. In suitable applications, this can reduce the need for a separate washer and help simplify assembly.

We manufacture flange nuts to customer drawings, samples and individual specifications, including non-standard thread sizes, flange diameters, nut heights, materials and special features.

What Are Flange Nuts?

Flange nuts combine a conventional threaded nut with an integral flange.

The flange increases the bearing area beneath the nut and can help distribute load more evenly across the joint.

Typical applications include:

• Machinery and equipment

• Automotive assemblies

• Fabricated structures

• Construction products

• Mechanical assemblies

• Production equipment

• Specialist engineering systems

Custom & Non-Standard Flange Nuts

Where a standard flange nut is unavailable or unsuitable, Pattern Fasteners can manufacture components specifically for the application.

Custom options can include:

• Non-standard thread diameters

• Fine and coarse pitches

• Metric and imperial threads

• Larger or smaller flange diameters

• Special flange thicknesses

• Reduced or enlarged hexagons

• Special nut heights

• Plain or serrated flange faces

• Slots and cross holes

• Grooves

• Special locking features

• Customer-specific tolerances

Serrated Flange Nuts

Flange nuts can be produced with serrations on the underside of the flange where additional resistance to rotation is required.

The serrated face is designed to engage with the mating surface and can help resist loosening in suitable applications.

Where surface marking is undesirable, a plain flange design may be more appropriate.

Plain Flange Nuts

Plain flange nuts provide an enlarged bearing surface without serrations.

They can be suitable where load distribution is important or where the mating surface needs to remain relatively undamaged.

Flange Nut Materials

Pattern Fasteners can manufacture flange nuts from a wide range of engineering materials, including:

• Carbon steels

• Alloy steels

• Stainless steels

• Aluminium

• Brass

• Copper alloys

• Nickel alloys

• Specialist engineering materials

Material selection will depend on factors such as strength, corrosion resistance, operating temperature and compatibility with the mating fastener.

Stainless Steel Flange Nuts

Stainless steel flange nuts are suitable for applications where corrosion resistance and durability are important.

They can be manufactured in a range of stainless steel grades to suit industrial, outdoor and specialist engineering environments.

Flange Nuts Made to Drawing

Many flange nut requirements are application-specific, particularly where flange diameter, nut height, thread form or locking features fall outside standard ranges.

Pattern Fasteners can manufacture directly from your engineering drawing, dimensional specification or physical sample.

This is particularly useful for:

• Replacement parts

• Obsolete machinery

• Prototype assemblies

• Specialist equipment

• Custom fastening systems

• Non-standard production requirements

UK Manufacturer of Custom Flange Nuts

Pattern Fasteners manufactures special fasteners and precision-engineered components in the West Midlands.

Whether you require a conventional flange nut form or a completely bespoke design with non-standard dimensions, threads or flange features, we can manufacture to your drawing or specification.

Need a Custom Flange Nut?

Send us your drawing, sample or specification and our team can review the thread, flange dimensions, material, tolerances and manufacturing requirements for your component.