如题所述
管螺纹 外螺纹大径 内螺纹小径
G1/8"-28 9.728 8.386
G1/4"-19 13.157 11.445
G1/2"-14 20.955 18.531
G1"-11 33.249 30.291
G1.1/4"-11 41.91 36.962
G1.1/2"-11 47.803 44.845
G1.3/4"-11 53.746 50.788
参考资料:公制、美制和英制螺纹标准手册.pdf