ISEKI compatible tiller knife Screw with nut Thread: M8 x 1 L (mm): 30 G (mm): 19 : 10.9 Dimensions (mm): M8 x 1 x 38 , 10.9 Right Knife Code: 180ISE-01R Right Knife Original Code: 1349-716-0020-1 Left Knife Code: 180ISE-01L Left Knife Original Code: 1349-716-0010-1 Screw & Nut Code: 18030-830 NS