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Security Nuts
Security nuts provide a strong, tamper-resistant fastening solution for applications where theft prevention and safety are essential. Available in permanent and reusable types, our range includes barrel nuts, security caps, and enclosures, with special sizes made to order.
Showing all 18 results
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2-Hole Pig Nose Security Nut
SKU: 2H06
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Angled 2-Hole Security Nut
SKU: 2H15
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4-Hole Security Nuts
SKU: 4H02
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Security Armour Rings
SKU: AR01
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Kinmar® Security Removable Nut
SKU: KM01
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Kinmar® Security Permanent One Way Nut
SKU: KM02
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No-Go Security Enclosures
SKU: NG01
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Shear Nuts (Security Breakaway Nuts)
SKU: SO01
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Security Tri Head Nuts (Triangular Head Nuts)
SKU: TR03
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Security Wave Nuts
SKU: WA02
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.












