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-18R Original right knife code: 19100423 Left knife code: 180MAS-18L Original left knife code: 19100424 Screw and nut code: 18030-1235 NS