Socket hexagon (allen type key) head with a pin in the centre of the hexagon to deter vandal tamper. Can be unfastened and re-fastened when used with mating security driver bit that can be utilised with standard screwdriver bit tooling.
The screws are made of grade 304 (A2) stainless as standard and are available in both csk and pan (button dome) profiles.
Please also view or range of other security fasteners such as oval head drive, 6 lobe pin drive, snake eye (2 hole / pig nose) fasteners and shear (conical snap off) nuts.
We can also supply special order a range of other security fasteners such security head drive masonry anchors, shear bolts, high security 4 hole drive nuts etc etc. Please contact the sales office for details