Motobilt DIY Beadlock are cut from 3/16 inch high strength steel on both the inner and outer rings. The inner ring sits in the lip of the wheel insted of on top for better centering. The 17 inch beadlock requires 36 bolts, nuts, and flat washers (hardware not included). Motobilt DIY beadlocks are intended for offroad use only. Installation should be performed by a qualified welder. Shipped raw steel.