... , 8), 12.4-24 (W11, 8), 12-38 (DW11, 8), 12.4-28 (W11, 6/8), 13.6-28 (W12, 8/10 ... );2.Section width (±4%): 205, 210, 210, ... 240, 285, 315, 330, 315, 345 ;3.Outer diameter (R-1, ±1 ... 1 7.50-16, 8.3-20, 8.3-24, 9.5-24, 11.2-24, 12.4-24, 12-38, 12.4-28 ... , 13.6-28