McGard specialized automotive bolt set offers excellent protection for wheels against theft. It features dark-colored heads that match well with any car rims. The seating fits perfectly into factory bolt holes. The kit includes four protected fasteners and a unique key designed specifically for these bolts. The main tool is copy-protected, and the bolts have asymmetric grooves, meaning that other keys, including universal ones, won't fit for removal. The original tool matches the bolt heads precisely and easily unscrews them. The bolts are made from durable, hardened alloy steel, resistant to stretching, twisting, and shearing.