VW 02A ring gear bolt kit with 12-point nuts, 1.180" Under Head Length, M10 x 1.25" Thread Size, ARP Ring Gear Bolt Kit 204-3002. ARP Ring Gear Bolts are forged from premium grade 8740 chrome moly steel and are heat-treated to a nominal rating of 200,000 psi tensile strength. Specially hardened precision-ground washers are included where required. The tremendous shock loads generated at launch by most any drag racing vehicle equipped with today’s sticky tire compounds or the acceleration and deceleration of track cars put considerable strain on the ring gear. For this reason, the fastener experts at ARP have developed the Pro Series ring gear bolts.