Mono-Drive 14 - Sentinel® Security Machine Screw - Button Head

Materials & Finishes

Steel, Zinc & Clear

Note: Due to the fact that fastening applications differ greatly, the below information is for guidance only and is correct to the best of our knowledge. The customer must satisfy themselves with the performance of the fastener and validity of the data. TR Fastenings will not be held responsible for any failure that may occur from the use of this information.

Dimension data
D nom (mm)7.79.811.615.8
H max (mm)


Further information

Key Features

The original one-way pozidrive security system. This drive system only operates in a clockwise motion using a standard pozidrive tool. Anti-clockwise motion is prohibited due to the rounded shape of the drive recess. This recess is ideal for easy and fast application with power tools.

Manufactured in bright zinc plated (CR-3) hardened steel woodscrews and machine screws.

TR Security Drivers

No specialist tools required, use standard pozi bits or drivers

Please note: Most security screws are not manufactured to DIN or ISO standards and head dimensions can vary considerably from manufacturer to manufacturer. If head dimensions are critical, please specify at time of order.  

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