Rotary tiller knife compatible with MALE Screw with nut Thread: M12 x 1.25 L (mm): 35 G (mm): 22 : 12.9 Dimensions (mm): M12 x 1.25 x 35 , 12.9 Right knife code: 180MAS-09R Original right knife code: M19100421 Left knife code: 180MAS-09L Original left knife code: M19100421 Screw and nut code: 18030-1235 NS