Bolt Seat: 60 Degree Taper. Bolt Dimensions: M12 x 1.5. Grade: 10.9 Carbon Steel.
Security Socket: Dual 17mm & 19mm Hex Head. This product is designed to be used with Alloy Wheels Only, not steel wheels. The key provided will only work with this set and not on existing locking bolts. The Old Creamery, Barskimming Road, East Ayrshire, KA5 5HQ.