Security Machine Screws - Resistorx Countersunk

About our Countersunk Security Machine Screws

Torx drives feature a six-pointed star-shaped (giving them the alternate name of Star drives) recess with rounded points on the star while Countersunk bolts are used when a flush finish is required, with no part of the screw head protruding above the level of the item being secured.

Like the Pozidrive, the main reason for the development of torx drive was the ability to impart increased torque loads on the head without the fear of the tool slipping. Another beneficial feature of the torx drive is that less effort is required by the operator, as the transfer of torque is more efficient. Torx drive recesses are commonly used in the automotive industry for this reason.

Our Countersunk Security Machine Screws all have a pin located in the middle of the drive to prevent removal with standard tools, making them excellent tamper-proof screws. We stock a choice of Pin Hexagon or Pin Resistorx 6 lobe drive, and both are available in a stainless-steel finish.

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