Tamtorque - unique tamper proof sign fixing clamps

Call us now on +44 (0)1787 376212 or email us

tamper proof sign fixing clamps

Tamtorque tamper-proof clamps

tamtorque_applicationFor the secure and reliable fastening of all types of signs, street furniture and other mountable equipment.

Fits almost any size of post, ranging from 55mm to 340mm in diameter. Manufactured from high strength stainless steel and with a hardened tamper-resistant screw featuring a unique seven sided socket.

Tamtorque offers unrivalled strength compared to other adjustable fixing systems, and can often be used in place of more expensive and difficult to use  bracketry secured with nuts and bolts.

Typical applications include:
Sign fixing – including road signs, public information signs and advertising displays
Street furniture – such as waste bins and flower planters
Electronic equipment – PA systems, public address speakers, CCTV and Automatic Number Plate Recognition cameras

Vandal resistant

Tamtorque tamper-proof sign clamps can only be tightened or released with a special Tamtorque screw bit, and are tough enough to withstand even the most persistent attack.


Tamtorque clamps are safe, quick and easy to use and feature a patented auto locking safety buckle that ensures the free end of the band is both safe and tidy.


Tamtorque tamper resistant clamps can be used over and over again. They are easily loosened, repositioned or removed completely using the special Tamtorque tool.

Large diameter application?

Look for our adjustable banding system, available with the unique Tamtorque clamps


Tamtorque Datasheet

Technical specification

Band width – 16mm (5/8″)
Recommended setting torque – 10-15 Nm 90-130 lb.in

Material specification

Band, Housing, Buckle – BS304 – EN1.4301 – A2
Screw – BS410 – EN1.4006 heat treated to 1220 N/mm2

Tamtorque tamper-proof clamps are available on short delivery from our extensive distributor network. Call us now on 01787 888031 or email us for details of your local stockist or specialist distributor.