... -in(mm)4-1/8 (105)2(50)NC31 3,6,9,12,15,18,21,24,27 (915,1,830 ... ,2,743,3,660,4,575,5,490,6,405,7,320,8,235) 4-3/4 (121)2 ... (50)NC355 (127)2-1/4(57)NC386-1/4 (159)2-13/16(71)NC466-1/2 (165)2 ... -13/16(71)NC467 (178)2-13/16(71)NC5082032-13/16(71)NC5692292-13/16(71)NC61 According to ...