Security Nuts

Security nuts, also known as tamper-proof or anti-tamper nuts, are designed for installations where the male fastener is hidden or inaccessible, preventing unauthorised removal and protecting against interference.

Suitable for use with any bolt, screw, or stud featuring a mating machine thread, these tamper-proof nuts are commonly stocked in metric threads, with imperial sizes also available.

Fastenright offers a wide variety of security nuts, barrel nuts, and security caps, supplied from stock or manufactured to your specification. Security barrel nuts can also be paired with a matching male component to create a complete security sex bolt set.

For non-standard sizes or materials, custom options can be produced to order with short lead times.