NGR Performance manufactures the NGR Dual Lug Nuts. It is a unique dual design, featuring stainless steel and aluminum two piece design.
The primary wheel nut piece is manufactured from stainless steel. This piece installs on the stud and features slots for key removal and installation. Why stainless steel? It’s strong, heavy, and durable.
The secondary piece is manufactured from aircraft-grade 6061-T6 aluminum. This is true 6061-T6. The secondary piece will not break given that the primary piece takes all the pressure.