Demon Unisex Mounting Hardware 12mm Snowboard Screw Set Full set of 8 screws and 8 washers Use caliper and depth gauge for determining proper screw lengths. 8 12-mm screws 8 Countersunk washers *WARNING: Too long a screw could penetrate into the snowboard base.. Use caliper and depth gauge for determining proper screw lengths see our amazon store for other sizes this is 12mm