Clutch Head Security Barrel Nuts & Sex Bolts

by Fastenright

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A security sex bolt is a tamper-proof adaptation of the commonly known sex bolt, also known as a barrel nut, barrel bolt, Chicago screw, architectural bolts or post and screw.
This is a type of tamper-proof security fastener which has a barrel-shaped flange and protruding boss that is internally threaded. The boss sits within the components being fastened, and the flange provides the bearing surface.
The security sex bolts, including a male and female bolt, and the accompanying tamper-proof security machine screw sit flush on either side of the surfaces being fastened.
It is often chosen because of its low profile compared to other fasteners. It has a built-in security drive feature to aid in tightening the fastener.
They can also be referred to as a sleeve nut within the industry.
Can be manufactured in Steel or Stainless steel depending on individual customer requirements.
Non-standard sizes and materials are available to order as specials, including custom parts made to drawings.

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Specification Details for Clutch Head Security Barrel Nuts & Sex Bolts (Bolts and Nuts)

Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that Fastenright is consulted before specifying.

Physical Properties

Product Type (?)

Security Bolt

Other

Uniclass (?)

Pr_20_29 Fastener products

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File Downloads for Clutch Head Security Barrel Nuts & Sex Bolts

Certifications & Standards

Operations & Maintenance

Technical Files

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Copyright Causeway Technologies 2026

Registered Office: Third Floor, Sterling House, 20 Station Road, Gerrards Cross, Buckinghamshire, SL9 8EL

Registered No. 3921897

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