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Shear Nut - One Way A4 Security Nut - A4 Stainless Steel

A4 Stainless Steel Breakaway nuts are the latest addition to our Shear Nuts range. Suitable for both indoor or outdoor applications including use in harsh marine environments such as coastal locations.

A4 Stainless Steel is a Marine Grade Steel and a higher grade of stainless than standard A2, which is why its the recommended product for use in harsh environments such as coastal or other marine locations, or for use on-board boats and ships.

Shear nuts are also known as breakaway nuts, snap off nuts or permacone nuts. Once the nut has been tightened to a predetermined torque the hexagonal section breaks off, leaving the tightened conical section permanently in place.


Other Shear Nuts available from stock -

Stainless Steel Shear Nuts (A2 grade)
Stainless Steel Shear Nuts (A4 marine grade)
BZP Shear Nuts
Galvanised Steel Shear Nuts

Note: One Way Shear Nuts are installed with a standard box spanner, ring spanner or socket set, etc. Once installed they cannot be easily removed thus providing a high security fixing.


...for other types of Security Fasteners - click on the individual links across the top of the page

...or to see All Security Screws and Fasteners - click on Start Selection Again

...for Bespoke Manufactured Shear Nuts - ...Contact us


Step 3 - now select the size you need by clicking on the appropriate 'Eye' logo (stock items) below:







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