This ARP M11 x 1.25 12-point 2-piece nut kit (noted for M13 wrench sizing) includes two M11 x 1.25 12pt nuts for metric applications. The kit supplies the correct fine-thread metric engagement while indicating the appropriate wrench size for installation. Use it when a matched pair of M11 x 1.25 12pt nuts is required for assembly or maintenance tasks.
ARP M11 X 1.25, (M13 wr) 12pt 2pc nut kit