Rarer (less well-known) products. Supply of driver tooling is controlled, less readily available to buy, enhancing the security of the assembly. Either 1-way permanent fixing, or rare Hafren patented high security products requiring specialist tooling to remove (only available from Hafren approved distributors).
Highest security available. Products
John Corrigan —
Absolutely first class service from Jonty, helped me sort out some security bolts with a very friendly and professional manner