Rotary tiller knife compatible with MALE Screw with nut Thread: M14 x 1.5 L (mm): 40 G (mm): 26 : 12.9 Dimensions (mm): M14 x 1.5 x 40 , 12.9 Right Knife Code: 180MAS-37R Original Right Knife Code: 29100405 Left Knife Code: 180MAS-37L Original Left Knife Code: 29100406 Screw & Nut Code: 18030-1440 NS