Rays Engineering (makers of Volk Racing Wheels) offer the Duraluminum Lug Nut. Manufactured from 6061 aluminum, individually machined, then hard anodized, the lug nuts are 25-50% lighter than steel lug nuts reducing unsprung weight where it counts the most. Engraved with Rays logo on the face of each nut.
The lug nuts are 35mm high and feature a 12x1.5 thread (all NSX / S2000). The lug nuts are designed for any aftermarket wheel which accepts a 19mm hex lug nut. Not for use with factory wheels.