RAD German Lug Bolts 12mmx1.5, 50mm Shank, R12 Ball Seat, 17mm Hex (Box of 20) RAD USA Direct is the exclusive U.S. distributor for RAD German lug bolts and wheel locks! The ONLY cold forged lug bolts on the market today! NOTHING is machined! Dacromet coated for corrosion resistance.