Complete Set of Chrome Lug Bolts + Wheel Locks For Mercedes | M12 x 1.5 Thread Size | R12 Ball Seat | 17mm Hex | Shank Length 39.9mm | Includes 16 Premium Chrome Lug Bolts + 4 Wheel Locks + 1 Coded Key M12 x 1.5 Thread Size | R12 Ball Seat | 17mm Hex | Total Length 63mm or 2.48" | Shank Length 39.9mm Heat treated & through hardened alloy steel | Triple nickel + chrome plating for maximum durability & protection against corrosion Tested & Certified to meet or exceed OEM quality standards | Manufacturer Warranty Included Guaranteed perfect fit | Please refer to product details & description for vehicle fitment information