Mono-Drive 7 - Hex Pin Security Machine Screw – Countersunk Head

Materials & Finishes 

A2 Stainless Steel, Self Colour

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)
H Max (mm)


Further information

Key Features 

A high quality screw with a traditional hexagon socket drive system but with a centrally located, cold forged security pin. Removable by dedicated driver only. Recommended for high strength applications. Ideal for surface or recesses applications and for power driver automated assembly. 

TR Security Drivers  

Our range of drivers are available from stock but only to bona fide purchasers of TR Security fasteners and can only be purchased separately if fasteners have been previously been supplied.  

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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