公制英制螺纹牙距表公制牙距英制美制称呼牙数粗牙细牙极细牙粗牙细牙韦氏牙M30.50。35 4＃1.94048 M40。70.5 6＃3。53240 M50。80.5 8#4.23236 M61。00。75 10＃4.82432 M710。75 12#5。52428 M81。251。00。751/46.35202820M101。51.251.05/167。94182418M121。751。51.253/89。53162416M142。01.51。07/1611。11142014M162.01.51。01/212.7132012M182。52.01.59/1614。29121812M202.52。01.55/815.86111811M222.52。01。53/419。05101610M243.02。01.57/822。239149M273。02.01。5125.48128M303。53.02。0
