(4) Locking Silver Lug Bolts 12x1.5 (40mm Shank Length, Ball Seat) Includes Socket Key - Fits many Mercedes Benz (Check Description for exact years) - C230 C240 C280 C320 E320 E420 E430 AMG SLK CLK [APPLICATIONS] Many Mercedes Benz vehicles that use 12x1.5 threaded bolts. Before purchasing, see Description section for specific year & model. [SPECIFICATIONS] Pack of 4 Locking Lug Bolts | Includes 5-Point Spline Socket Key | Ball Seat | 40mm Shank Length | 12x1.5 Thread Size [CHECK SHANK LENGTH] Vehicles come with a variety of bolt lengths. This 40mm Shank Length bolt may not fit if it is not the same size as your OEM lug bolt. [MANUFACTURING] Manufactured with cold forged steel. Zinc coating provides exceptional corrosion resistance and appearance. Additional Heat Treating Process ensures dependable strength & durability. [ADDED SECURITY] These Bolts require the included Socket Key to install and remove, thereby adding a layer of security against wheel thieves