螺纹代号 螺纹代号 螺纹代号
Max min Max min Max min
M10*1 9.97 9.79 G1/8"*28 9.73 9.51
7/16"-20 UNF 11.08 10.87
M12*1.5 11.97 11.73
1/2"-20 UNF 12.67 12.46
G1/4"-19 13.16 12.91
M14*1.5 13.97 13.73 9/16"-18 UNF 14.25 14.03
M16*1.5 15.97 15.73
G3/8"-19 16.66 16.41
11/16"-16 UN 17.43 17.19
M18*1.5 17.97 17.73
3/4"-16 UNF 19.01 18.77
M20*1.5 19.97 19.73
13/16"-16 UN 20.60 20.35 G1/2"-14 20.96 20.67
M22*1.5 21.97 2