Shop our wide range of No10 Zinc Countersunk Self Tapping at boltandbearing.co.uk; collect in-store and get the right tool for the job with over 5000 products in stock.
Available here are Clutch Head Countersunk Security Self Tapping Screws. The clutch head is the original one-way security drive. The special ridged design of this drive means that it can only operate in a clockwise motion. Installed using standard slotted screwdriver - no specialist tools required...