螺纹规格-美制、英制、公制对照表
螺纹规格-美制、英制、公制
公制/美制/英制螺纹对照表
给大家分享一下
A型美制螺纹(UNF)常用规格
外螺纹内螺纹
-4 9/16"-19牙 14.28 13.08
-6 11/16''-16 17.46 16.1
-8 13/16''-16 20.64 19.28
-10 1''-14 25.40 23.57
-12 1(3/16)''-12 30.00 28.32
-16 1(7/16)''-12 36.51 34.67
-20 1(11/16)''-12 42.86 41.02
C型JIC37度美制UNF螺纹常用规格-4 7/16”-20 11.11 10.03
-5 1/2”-20 12.70 11.32
-6 9/16”-18 14.28 13.08
-8 3/4”-16 19.00 17.68
-10 7/8”-14 22.22 20.68
-12 1(1/16)"-12 26.98 25.15
-16 1(5/16)"-12 33.33 31.5
-20 1(5/8)"-12 41.28 39.44
-24 1(7/8)"-12 47.62 45.8
-32 2(1/2)"-12 63.5 61.67
英制圆柱管螺纹(BSPP)常用规格-4 1/4”-19 13.157 11.55
-6 3/8”-19 16.662 14.95
-8 1/2”-14 20.955 18.63
-12 3/4”-14 26.441 24.11
-16 1”-11 33.249 30.29
-20 1(1/4)''-11 41.91 38.95
英制圆锥管螺纹(BSPT)常用规格基面大径基准距离
1/4”-19 13.157 6
3/8”-19 16.662 6.4
1/2”-14 20.955 8.2
3/4”-14 26.441 9.5
1”-11 33.249 10.4
1(1/4)''-11 41.91 12.7
美制圆锥管螺纹(NPT)
1/8”-27 10.24 4
1/4”-18 13.60 4
3/8”-18 17.04 4.32
1/2”-14 21.22 4.48
3/4”-14 26.57 4.75
1”-11(1/2)” 33.22 4.6
1(1/4)”-11.5 41.96 4.83