Mono-Drive 4 - 6 Lobe Pin Security Self Tapping Screw – Countersunk Head

Materials & Finishes 

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
 No. 4
No. 6
No. 8
No. 10
No. 12
No. 14
D nom (mm)
H max (mm)


Further information

Key Features

Round profile screw with 6 spline drive system with centrally located, cold forged security pin. Removable by dedicated driver only. Recommended for high bond strength applications. Ideal for surface or recessed applications. 

TR Security Drivers

Our range of drivers and drive bits 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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