1、公制細螺紋M1*0.25 M1.1*0.25 M1.2*.25 M1.4*0.3 M1.6*0.35 M1.7*0.35 M1.8*0.35 M2*0.4 M2.2*0.45 M2.3*0.4 M2.5*0.45 M2.6*0.45 M3*0.5 *M3*0.6 M3.5*0.6 M4*0.7 *M4*0.75 M4.5*0.75 M5*0.8 *M5*0.9 M6*1 M7*1 M8*1.25 M9*1.25 M10*1.5 M11*1.5 M12*1.75 M14*2 M16*2 M18*2.5 M20*2.5 M22*2.5 M24*3 M27*3 M30*3.5 M33*3.5 M36

2、*4 M39*4 M42*4.5 M45*4.5 M48*5標準徑0.750.850.951.11.251.351.451.61.751.92.12.22.52.42.93.33.253.84.24.1566.87.88.59.510.3121415.517.519.5212426.529.5323537.540.5432級螺紋內徑上限 0.785 0.885 0.985 1.142 1.321 1.421 1.521 1.679 1.838 1.979 2.138 2.238 2.599 2.44 3.01 3.422 3.326 3.878 4.334 4.17 5.153 6.153 6

3、.912 7.912 8.676 9.676 10.441 12.21 14.21 15.744 17.744 19.744 21.252 24.252 26.771 29.771 32.27 35.27 37.779 40.779 43.279下限0.7290.8290.9291.0751.2211.3211.4211.5761.7131.8672.0132.1132.4592.282.853.2423.1063.6884.1343.934.9175.9176.6477.6478.3769.37610.10611.83513.83515.24917.24919.24920.75223.752

4、26.21129.21131.6734.6737.12940.12942.587公制標準螺紋規格 M1*0.20M1.1*0.20M1.2*0.20M1.4*0.20M1.6*0.20*M1.7*0.20M1.8*0.20M2*0.25M2.2*0.25*M2.3*0.25M2.5*0.35*M2.6*0.35M3*0.35M3.5*0.35M4*0.50M4.5*0.50M5*0.50M5.5*0.50M6*0.75*M6*0.5M7*0.75*M7*0.50M8*1.0M8*0.75*M8*0.50M9*1.0M9*0.75M10*1.25標準徑 0.8 0.9 1 1.2 1.4 1.4

5、5 1.6 1.75 1.95 2.05 2.121 2.2 2.7 3.2 3.5 4 4.5 5 5.3 5.5 6.3 6.5 7 7.3 7.5 8 8.3 8.81級-2級螺紋內徑上限 0.821 0.921 1.021 1.221 1.421 1.5 1.621 1.785 1.985 2.016 2.221 2.246 2.721 3.221 3.599 4.099 4.599 5.099 5.378 5.55 6.378 6.55 7.153 7.378 7.52 8.153 8.378 8.912下限0.7830.8830.9831.1831.3831.461.5831.72

6、91.9292.0012.1212.1862.6213.1213.4593.9594.4594.9595.1885.46.1886.46.9177.1887.47.9178.1888.647附* 號螺紋自學968年3月刪除公制細螺紋規格M10*1 M10*0.75 *M10*0.5 M11*1 M11*0.75 M12*1.5 M12*1.25 M12*1 *M12*0.5 M14*1.5 M14*1.0 M15*1.5 M15*1.0 M16*1.50 M16*1.0 M17*1.50 M17*1.0 M18*2.0 M18*1.50 M18*1.0 M20*2.0 M20*1.50 M20

7、*1.0 M22*2 M22*1.50 M22*1.0 M24*2.0 M 24*1.50 M24*1.0 M25*2.0 M25*1.50 M25*1.0 M26*1.50 M27*2.0 M27*1.50 M27*1.0 M28*2.0 M28*1.50 M28*1.0 M30*3.0 M30*2.0 M30*1.50 M30*1.0 M32*2.0標準徑99.39.51010.310.510.81111.512.51313.51414.51515.5161616.5171818.5192020.5212222.5232323.52424.52525.5262626.527272828.5

8、29302級螺紋內徑 上限 9.153 9.378 9.52 10.153 10.378 10.676 10.912 11.153 11.52 12.676 13.153 13.676 14.153 14.676 15.153 15.676 16.153 16.21 16.676 17.153 18.21 18.676 19.153 20.21 20.676 21.153 22.21 22.676 23.153 23.21 23.676 24.153 24.676 25.21 25.676 26.153 26.21 26.676 27.153 27.252 28.21 28.676 29.15

9、3 30.21下限8.9179.1889.49.91710.18810.37610.64710.91711.412.37612.91713.37613.91713.91714.37614.91715.37615.83516.37616.91717.83518.37618.91719.83520.37620.91721.83522.37622.91722.83523.37623.91724.37624.83525.37625.91725.83526.37326.91726.75227.83528.37628.91729.835規格 M32*1.50M33*3M33*2M33*1.50M35*1.

10、50M36*3.0M36*2.0M36*1.50M38*1.50M39*3M39*2M39*1.50M40*3M40*2M40*1.50M42*4M42*3M42*2M42*1.50M45*4M45*3M45*2M45*1.50M48*4M48*3M48*2M48*1.50M50*3M50*2M50*1.50標準徑30.5 30 31 31.5 33.5 33 34 34.5 36.5 36 37 37.5 37 38 38.5 38 39 40 40.5 41 42 43 43.5 44 45 46 46.5 47 48 48.52級螺紋內徑 上限 30.676 30.252 31.21 3

11、1.676 33.676 33.252 34.21 34.676 36.676 36.252 37.21 37.676 37.252 38.21 38.676 38.27 39.252 40.21 40.676 41.27 42.252 43.21 43.676 44.27 45.252 46.21 46.676 47.252 48.21 48.676下限30.37629.75230.83531.37633.37632.75233.83534.37636.37635.75236.83537.37636.75237.83538.37637.6738.75239.83540.37640.6741.

12、75242.83543.37643.6744.75245.83546.37646.75247.83548.376附* 號螺紋自學968年3月刪除惠式螺紋（舊英制牙）規格*W18-40 *W532-32 W14-20 W516-18 W38-16 W716-14 W12-12 W916-12 W58-11 W34-10 W78-9 W1-8 W18-7 W114 W138-6 W112-6 W158-5 W134-5 W118-5 W2-412鉆頭徑A例2.65 3.25 5.1 6.6 8 9.4 10.7 12.3 13.7 16.7 19.5 22.4 25 28.3 30.5 33.8

13、36 39.2 41.8 45B例 2.6 3.2 5 5 6.5 7.9 9.310.5 12 13.5 16.5 19.3 22 24.8 28 30.3 33.5 35.7 39 41.5 44.7山數節距換算表山數(25.4)100 880 772 64 60 56 48 44 40 36 32 28 24 20 18 16 14 13 12 11 10 9節數 0.2540.31750.35180.39690.42330.45360.52920.57730.6350.70560.79380.90711.05831.271.41111.58751.81431.95382.11672.3

14、0912.542.82223.1753.62864.23335.085.64446.357.25717.81548.46678.83489.23649.676210.163.7牙套螺紋攻用規格M3*0.5 M4*0.7 M5*0.8 M6*1 M8*1.25 M10*1.5 M10*1.25 M10*1 M12*1.75 M12*1.5 M12*1.25 M14*2 M14*1.5 M16*2 M16*1.5 M18*2.5 M18*1.5 M20*2.5 M20*1.5鉆頭徑3.1 4.2 5.2 6.3 8.4 10.5 10.4 10.3 12.5 12.5 12.5 14.5 14.5

15、 16.5 16.5 19 18.5 21 20.5下孔徑 上限3.24.35.336.428.5210.6210.5210.4212.7312.6212.5214.8314.6216.8316.6219.0418.6221.0420.628 7 6 5 412 4 312 312 3 278 234 258 2123.124.175.166.258.3110.3710.3110.2512.4312.3712.311434914.3716.4916.3718.5818.3720.5820.37下限美制粗螺紋規格UNC外徑標準徑NO.164（1.854) NO.2-56(2.184) NO.3-

16、48(2.515) NO.4-40(2.845) NO.5-40(3.173) NO.6-32(3.505) NO.8-32(4.166) NO.10-24(4.826) NO.12-24(5.486)14-20 516-18 38-16 716-14 12-13 916-12 58-11 34-10 78-9 18-8 1-18-7 1-14-7 1-38-6 1-12-6 1-34-5 1-4-121.55 1.8 2.1 2.3 2.6 2.8 3.4 3.9 4.5 5.1 6.6 8 9.4 10.8 12.2 13.6 16.5 19.5 22.2 25 28.2 30.8 34

17、39.5 45.22級牙鉆孔徑最大 1.582 1.871 2.146 2.385 2.679 2.895 3.53 3.962 4.597 5.257 6.731 8.153 9.55 11.023 12.446 12.868 18.84 19.761 22.606 25.349 28.524 31.115 34.29 39.827 45.593最小1.4521.6951.9412.1572.4872.6423.3023.6834.3444.9796.4017.7939.14410.59211.98913.38616.30719.50721.97124.639827.81330.35333.

18、52838.96444.679PT116-28PT18-28PT14-19PT38-19PT12-14PT34-14PT14-11PT1-14-11PT1-12-11PT2-2-11PS116-28PS18-28Ps14-19PS38-19PS12-14PS34-14PS14-11PS1-14-11PS1-12-11PS2-12-11規格英制管螺紋標準徑最大6.58.511.41518.52430.238.844.856.56.632 8.687 11.549 15.054 18.733 24.259 30.471 39.132 45.025 56.836英制管螺紋有效牙規格標準徑使用鉸刀時6

19、.18.110.714.217.6232937.543.454.9不用鉸刀時 6.2 8 11 14.5 13 23.5 29.5 38 44 55.5部之長 度中螺牙內徑標準長度之螺牙內徑6.3848.388鉆孔徑最小6.498.49511.34114.84618.48923.97530.11138.77244.66556.47611.174 14.685 18.263 23.663 29.822 38.339 44.232 55.844美制管螺紋鉆頭徑( )內英制尺寸規格規格NPT使用鉸刀時 不使用鉸刀時8.43(0.332)NPSCPT116-28鉸刀時 6.1管用螺紋(PT)鉆頭徑 不

20、用鉸刀時6.2 8.2 11 14.5 18 23.5 29.5 38 44 55.5有效螺紋長度用內徑6.2448.24910.92614.44817.97923.37829.45937.97643.86955.412標用6811141823293842558.110.7PT38-19 PT12-14 PT34-14 PT1-11 PT114-11PT2-1114.217.6232937435411.13(0.438) 11.13(0.438)14.27(0.562) 14.68(0.578)17.86(0.703) 18.26(0.719)23.0(0.906)23.42(0.922)28

21、.98(1.414) 29.36(1.156)43.66(1.719) 44.45(1.750)55.58(2.188) 56.36(2.219)66.27(2.609) 67.46(2.656)規格 PF116-28鉆頭徑 6.737.69(1.484) 管用螺紋(PF)AB級螺紋內徑上限 6.843下限 6.561 8.566 11.445 14.95 18.631 20.587 24.117 27.887 30.291 34.93.9 38.952 44.845 50.788 56.656螺紋內徑上限 6.632 8.637 11.549 15.054 18.773 24.259 30.

22、471 39.132 45.025 56.863下限 6.4 8.4 11.3 14.8 18.4 23.9 30.1 38.7 44.6 56.4乾封美制管螺紋鉆頭徑( )內英制尺寸規格 116-27 18-278.78.848NPSFPF14-19 11.7使用鉸刀時 不使用鉸刀時 11.89 15.2192124.528.230.5PF118-11PF114-11PF112-11PF134-11PF2-1135.239.2455157鉆頭徑 6.58.511.41518.52430.238.844.856.515.395 19.172 21.128 24.658 28.418 30.93

23、1 35.579 39.592 45.458 51.428 57.296管用螺紋(PS)規格 PS116-28PS18-28 PS14-19 PS38-19 PS12-14 PS34-14 PS1-11 PS114-11PS112-11PS-11美制迫牙絲攻鉆孔徑規格精度等級G4G8G9規格英制螺紋鉆孔徑 硬材 2.65 3.25 3.75 5.1 6.6 8 9.4 10.7 12.3 13.7 16.7 19.5 22.4 25 28.3 滾造徑2.735-2.688 2.769-2.722軟材 5 12 22 28516-18 38-16 716-14 12-13W58-11 W34-1

24、0 W78-9針車用螺紋 規格38-24 716-20 12-20美制特制螺紋規格（UNEF） NO.12-32 14-32 516-32 38-32 716-28 12-28 916-24 58-24 34-20 78-20 1-20標準徑2級牙鉆孔徑 最大 最小 4.8264.6235.695.4867.2647.0878.8658.66110.33810.13513.38611.70914.98613.13214.98614.73217.95817.67821.13320.85924.30824.028針車螺紋規格 滾造徑美制管螺紋規格116-27 18-27 14-18 38-18 1

25、2-14 34-14 1-11-12 1-14-11-12 1-12-11-12 2-11-12規格 鉆孔徑 3BA英制電器螺紋鉆孔徑 NPS公制螺紋 最大 最小6.256.35規格 滾造徑 8.438.7411.1311.1314.2714.6817.8618.2623.0123.4228.9829.3637.6938.144.0444.4555.9656.36美制細螺紋規格(絲牙外徑） 標準徑 7G8 NO.1-72(1.854) NO.2-64(2.134) NO.3-56(2.515) NO.4-48(2.345) NO.5-44(3.175) NO.6-40(3.505) NO.8-

26、36(4.166) NO.10-32(4.326) NO.12-28(5.846) 14-28 516-24 38-24 716-20 12-20 916-18 58-18 34-16 78-14 18-12 1-18-12 1-14-12 1-38-12 1-12-12公制迫牙絲攻鉆孔徑最小1.1821.4741.7562.0252.2712.5512.823.4043.9634.4965.366.7828.3829.72911.32912.75114.35117.32320.2723.11426.28929.46432.63935.814規格 M1.0*0.25 M1.1*0.25 M1.

27、2*0.25 M1.4*0.3 M1.6*0.35 M1.7*0.35 M1.8*0.35 M2.0*0.4 M2.2*0.45 M2.3*0.4 M2.5*0.45 M2.6*0.45 M3.0*0.5 M3.5*0.6 M4.0*0.7 M5.0*0.8 M6.0*1.0 M7.0*1.0 M8.0*1.25 M10*1.5 M10*1.25 M12*1.75 M12*1.25精度等級G4G6G70.86 0.96 1.06 1.24 1.41 1.51 1.61 1.78 1.95 2.08 2.25 2.35 2.73 3.17 3.623.694.564.645.455.556.45

28、6.557.317.449.189.329.319.4411.0411.2111.3111.44最大英美聯合螺紋規格 NO.1-64UNC NO.2-56UNC NO.3-48UNC NO.4-40UNC NO.5-40UNC NO.6-32UNC NO.832UNC NO.10-24UNC NO.12-24UNC 14-20UNC 516-18unc 38-16UNC 716-14UNC 12-13UNC 916-12UNC 58-11UNC 34-10UNC 78-9UNC 1-8UNC 118-7UNC 114-7UNC 138-6UNC 112-6UNC 134-5UNC 2-412U

29、NC英美聯細螺紋規格 no.0-80unf no.1-72unf no.2-64-unf no.3-565unf no.4-48unf no.5-44unf no.6-40unf no.8-36unf no.10-32unf no.12-28unf 14-28unf 516-24unf 38-24unf 716-20unf 12-unf 916-unf 58-18unf 34-16unf 78-14unf 1-12unf 118-12unf 114-12unf 138-12unf 112-12unf鉆頭徑1.25 1.55 1.85 2.1 2.4 2.7 2.9 3.5 4.1 4.6 5.

30、5 6.9 8.5 9.9 11.5 12.9 14.5 17.5 20.5 23.2 26.5 29.5 32.8 36下孔徑 上限 下限1.1821.4741.7562.0252.2712.5512.823.4043.9634.4965.366.7828.3829.72911.32912.7514.3517.3220.2723.1126.2829.4632.6335.81鉆頭徑 1.551.82.12.32.62.83.43.94.55.16.689.410.812.213.616.519.522.22528.230.83439.545.22B螺紋徑 上限 下限 1.582 1.4251.

31、6951.9412.1572.4872.6423.3023.6834.3444.9796.4017.7989.14410.59911.98913.38616.30719.17721.97124.81327.81330.35333.52838.96444.679公制粗螺紋標準規格 M1.0*0.25 M1.1*0.25 M1.2*0.25 M1.4*0.3 M1.6*0.35 M1.7*0.35 M1.8*0.35 M2.0*0.4 M2.2*0.45 M2.3*0.4 M2.5*0.45 M2.6*0.45 M3.0*0.5 M3.0*0.6 M3.5*0.6 M4.0*0.7 M4.0*0.

32、75 M4.5*0.7 M5*0.8 M5*0.9 M7*1.0 M8*1.25 M9*1.25 M10*1.5 M11*1.5 M12*1.75 M14*2.0 M16*2.0 M18*2.5 M20*2.5 M22*2.5 M24*3.0 M27*3.0 M30*3.5標準徑 0.75 0.85 0.95 1.1 1.25 1.35 1.45 1.6 1.75 1.9 2.1 2.2 2.5 2.4 2.9 3.8 3.25 3.8 4.2 4.1 6 6.8 7.8 8.5 9.5 10.3 12 14最大最小規格徑 0.80.911.21.41.451.61.751.952.052.2

33、2.22.73.23.544.555.35.56.36.577.37.588.38.899.39.51010.310.510.81111.512.51313.50.785 0.729 M1.0*0.2 0.885 0.829 M1.1*0.2 0.985 0.929 M1.2*0.2 1.142 1.075 M1.4*0.2 1.321 1.221 M1.6*0.2 1.421 1.321 M1.7*0.2 1.521 1.421 M1.8*0.2 1.679 1.567 M2.0*0.251.888 1.713 M2.2*0.251.979 1.867 M2.3*0.252.138 2.01

34、3 M2.5*0.352.238 2.113 M2.5*0.352.599 2.459 M3.0*0.352.44 3.012.28 M3.5*0.35公制細螺紋標準最大 0.8210.9211.0211.2211.4211.51.6211.7851.9852.0612.2212.2462.7213.2213.5994.0994.5995.0995.3785.556.3786.557.1537.3787.528.1538.3788.9129.1539.3789.5210.15310.37810.67610.91211.15311.52312.67613.15313.676最小0.7830.88

35、30.9831.1831.3831.461.5831.7291.9292.0012.1212.1862.6213.1213.4593.9594.4594.9595.1885.46.1886.46.9177.1887.47.9178.1888.6478.9179.1889.49.91710.1910.3810.6510.9211.412.3812.9213.38規格 M15*1.0 M16*1.5 M16*1.0 M17*1.5 M17*1.0 M18*2.0 M18*1.5 M18*1.0 M20*2.0 M20*1.5 M20*1.0 M22*1.5 22*1.0 M24*2.0 M24*1.5 M24*1.0 M25*2.0 M25*1.5 M25*1.0 M26*1.5 M27*2.0 M27*1.5 M27*1.0 M2