Z1 Splined Lug Nut Kit Perfect for installing custom wheels these chrome plated lug nuts feature a small head diameter to allow for installation on wheels requiring a splined or tuner style lug nut. These feature an external spline drive and are supplied with their own key / socket for installation. They are sold in a complete set of 20 lugs and 1 spline drive socket.
12mm x 1.25 thread pitch. Conical seat design.
Available in both open ended and closed end designs. Open ended lugs are recommended for use with entended studs or in competition where rules require an open lug nut.
Unlike some spline drive nuts on the market these do not use a "universal" key. The spline is unique to this manufacturer and gives an added level of security in addition to form and function. $19.00 Set