HAKO compatible tiller knife Screw with nut Thread: M8 x 1 L (mm): 30 G (mm): 19 : 10.9 Dimensions (mm): M8 x 1 x 30, 10.9 Right knife code: 180HAK-51R Original right knife code: E 0142-10 Left knife code: 180HAK-51L Original left knife code: E 0143-10 Screw and nut code: 18030-830 NS