Clamping screw Pro Bolt For clamping the front axle to the fork. Made of 316 stainless steel, which offers the following benefits:  - excellent strength - excellent corrosion resistance - high resistance to acids  The offered stainless steel screws are all polished to a high gloss.  Stainless steels are iron alloys with a minimum of 10.5% chromium added to other elements (nickel, molybdenum, titanium, copper, carbon, nitrogen) to increase properties such as formability and strength. A chromium-rich oxide layer gives stainless steel its corrosion resistance.  The set corresponds to the original configuration of the clamping screws for the fork.