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Westfield Fasteners Ltd Telephone: 01844201133, Email: enquiries@westfieldfasteners.co.uk
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Flange Nuts

Flange Nuts or Hexagonal Flange Nuts have an integrated washer on the base of the nut. This helps even out the fastening pressure across the surface of the receving material therefore causing less damage. Flange Nuts are available with a plain flat underside of the flange or with a serrated underside for more grip upon tightening. The flange on these nuts also helps guard against loosening through vibration so nuts are less likely to work free. Available in A2, A4 and BZP Steel with some variants also boasting a nylon insert for locking purposes.
Fastener Material Key
A2 Stainless Steel - Also known as grade 304 or 18/8. A general purpose grade of stainless steel.
A4 Stainless Steel - Also known as grade 316 or 18/8/3. A higher corrosion resistant, marine grade of stainless steel.
Black Oxide Class 12+ High Tensile Steel - A high tensile non-stainless grade with a black oxide finish offering limited corrosion resistance.
Bright Zinc Plated (BZP) Steel - Non-stainless standard steel grade offering a basic level of corrosion resistance.
Bright Zinc Plated (BZP) Class 8 High Tensile Steel - The general purpose high tensile grade for nuts, offering a basic level of corrosion resistance.
Plastic (Nylon Polyamide) - A tough lightweight plastic, strong at low temperatures, with excellent resistance to chemicals, and features favourable sliding friction behaviour.


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