螺纹底孔直径表上课讲义.xls
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1、 螺纹底孔直径表(切削)公制 粗牙螺纹 (切削方式加工)螺纹尺寸钻头直径嵌合度区分嵌合度区分中(注1)2级(注2)中(注1)内螺纹小径2级(注2)最小直径最大直径M10.250.750.78(80%)0.7290.785M1.10.250.850.88(80%)0.8290.885M1.20.250.950.98(80%)0.9290.985M1.40.31.11.14(80%)1.0751.142M1.60.351.251.32(75%)1.2211.321M1.80.351.451.52(75%)1.4211.521M20.41.61.65(80%)1.5671.679M2.20.451.
2、751.83(75%)1.7131.838M2.50.452.12.13(75%)2.0132.138M30.52.52.59(75%)2.4592.599M3.50.62.93.01(75%)2.853.01M40.73.33.39(80%)3.2423.422M4.50.753.83.85(80%)3.6883.878M50.84.24.31(80%)4.1344.334M6155.13(80%)4.9175.135M7166.13(80%)5.9176.153M81.256.86.85(85%)6.6476.912M91.257.87.85(85%)7.6477.912M101.58.5
3、8.62(85%)8.3768.676M111.59.59.62(85%)9.3769.676M121.7510.310.4(85%)10.10610.441M1421212.2(85%)11.83512.21M1621414.2(85%)13.83514.21M182.515.515.7(85%)15.29415.744M202.517.517.7(85%)17.29417.744M222.519.519.7(85%)19.29419.744M2432121.2(85%)20.75221.252M2732424.2(85%)23.75224.252M303.526.526.6(90%)26.
4、21126.771M333.529.529.6(90%)29.21129.771M3643232.1(90%)31.6732.27M3943535.1(90%)34.6735.27M424.537.537.6(90%)37.12937.799M454.540.540.6(90%)40.12940.799M4854343.1(90%)42.58743.297注1)M1.4以下等级:5H,M1.6以上等级6H。注2)基于JIS B 0209-1982标准。底孔径(公制螺纹.美制统一螺纹)底孔径=D-2(0.541266P)(嵌合率/100)备注:P:螺距D:外螺纹大径0.923760.42492
5、螺纹底孔直径表(切削)注1)等级:6H公制 细牙螺纹 (切削方式加工)注2)基于JIS B 0211-1982标准。螺纹尺寸钻头直径嵌合度区分嵌合度区分螺纹尺寸钻头直径嵌合度区分嵌合度区分中(注1)2级(注2)中(注1)2级(注2)中(注1)内螺纹小径中(注1)内螺纹小径2级(注2)最小直径最大直径2级(注2)最小直径最大直径M2.50.352.22.22(75%)2.1212.221M2512424.13(80%)23.91724.153M30.352.72.72(75%)2.6212.721M261.524.524.62(85%)24.37624.676M3.50.353.23.22(75
6、%)3.1213.221M2722525.2(85%)24.83525.21M40.53.53.59(75%)3.4593.599M271.525.525.62(85%)25.37625.676M4.50.544.09(75%)3.9594.099M2712626.13(80%)25.91726.153M50.54.54.59(75%)4.4594.599M2822626.2(85%)25.83526.21M5.50.555.09(75%)4.9595.099M281.526.526.62(85%)26.37626.676M60.755.35.35(80%)5.1885.378M2812727
7、.13(80%)26.91727.153M70.756.36.35(80%)6.1886.378M3032727.2(85%)26.75227.252M8177.13(80%)6.9177.153M3022828.2(85%)27.83528.21M80.757.37.35(80%)7.1887.378M301.528.528.62(85%)28.37628.676M9188.13(80%)7.9178.153M3012929.13(80%)28.91729.153M90.758.38.35(80%)8.1888.378M3223030.2(85%)29.83530.21M101.258.88
8、.85(85%)8.6478.912M321.530.530.62(85%)30.37630.676M10199.13(80%)8.9179.153M3333030.2(85%)29.75230.252M100.759.39.35(80%)9.1889.378M3323131.2(85%)30.83531.21M1111010.13(80%)9.91710.153M331.531.531.62(85%)31.37631.676M110.7510.310.35(80%)10.18810.378M351.533.533.62(85%)33.37633.676M121.510.510.62(85%)
9、10.37610.676M3633333.2(85%)32.75233.252M121.2510.810.85(85%)10.64710.912M3623434.2(85%)33.85334.21M1211111.13(80%)10.91711.153M361.534.534.62(85%)34.37634.676M141.512.512.62(85%)12.37612.676M381.536.536.62(85%)36.37636.676M1411313.13(80%)12.91713.153M3933636.2(85%)35.57236.252M151.513.513.62(85%)13.
10、37613.676M3923737.2(85%)36.83537.21M1511414.13(80%)13.91714.153M391.537.537.62(85%)37.37637.676M161.514.514.62(85%)14.37614.676M4033737.2(85%)36.75237.252M1611515.13(80%)14.91715.153M4023838.2(85%)37.83538.21M171.515.515.62(85%)15.37615.676M401.538.538.62(85%)38.37638.676M1711616.13(80%)15.91716.153
11、M4243838.1(90%)37.6738.27M1821616.2(85%)15.83516.21M4233939.2(85%)38.75239.252M181.516.516.62(85%)16.37616.676M4224040.2(85%)39.83540.21M1811717.13(80%)16.91717.153M421.540.540.62(85%)40.37640.676M2021818.2(85%)17.83518.21M4544141.1(90%)40.6741.27M201.518.518.62(85%)18.37618.676M4534242.2(85%)41.752
12、42.252M2011919.13(80%)18.91719.153M4524343.2(85%)42.83543.21M2222020.2(85%)19.83520.21M451.543.543.62(85%)43.37643.676M221.520.520.62(85%)20.37620.676M4844444.1(90%)43.6744.27M22121 21.13(80%)20.91721.153M4834545.2(85%)44.75245.252M24222 22.2(85%)21.83522.21M4824646.2(85%)45.83546.21M241.522.5 22.62
13、(85%)22.37622.676M481.546.546.62(85%)46.37646.676M24123 23.13(80%)22.91723.153M5034747.2(85%)46.75247.252M2522323.2(85%)22.83523.21M5024848.2(85%)47.83548.21M251.523.523.62(85%)23.37623.676M501.548.548.62(85%)48.37648.676 螺纹底孔直径表(切削)美制统一 粗牙螺纹 美制统一 细牙螺纹螺纹尺寸钻头直径2B级螺纹内螺纹小径螺纹尺寸钻头直径2B级螺纹内螺纹小径底孔直径最小直径最大直径
14、底孔直径最小直径最大直径1-64UNC1.551.57(65%)1.4251.5820-80UNF1.251.3(65%)1.1821.305 2-561.81.86(65%)1.6951.8711-721.551.61(65%)1.4741.612 3-482.12.14(65%)1.9412.1462-641.851.9(65%)1.7561.912 4-402.32.36(70%)2.1572.3853-562.12.17(70%)2.0252.197 5-402.62.69(70%)2.4872.6974-482.42.44(70%)2.2712.458 6-322.82.86(75%
15、)2.6422.8955-442.72.74(70%)2.5512.74 8-323.43.52(75%)3.3023.536-402.93.02(70%)2.823.022 10-243.93.91(80%)3.6833.9628-363.53.59(75%)3.4043.606 12-244.54.57(80%)4.3444.59710-324.14.14(80%)3.9634.165 1/4-205.15.25(80%)4.9795.257 12-284.64.7(80%)4.4964.7245/16-186.66.72(80%)6.4016.731 1/4-285.55.56(80%)
16、5.365.588 3/8-1688.15(80%)7.7988.1535/16-246.97.02(80%)6.7827.0357/16-149.49.5(80%)9.1449.55 3/8-248.58.61(80%)8.3828.636 1/2-1310.811(80%)10.59211.0237/16-209.910.01(80%)9.72910.0339/16-1212.212.3(85%)11.98912.446 1/2-2011.511.6(80%)11.32911.607 5/8-1113.613.8(85%)13.38613.8689/16-1812.913.07(80%)1
17、2.75113.081 3/4-1016.516.8(80%)16.30716.84 5/8-1814.514.65(80%)14.35114.681 7/8-919.519.6(85%)19.17719.761 3/4-1617.517.59(85%)17.32317.678 1-822.222.5(85%)21.97122.606 7/8-1420.520.6(85%)20.2720.6751 1/8-72525.2(85%)24.63825.349 1-1223.223.5(85%)23.11423.5711 1/4-728.228.4(85%)27.81328.524 1 1/8-12
18、26.526.7(80%)26.28926.7461 3/8-630.831(85%)30.35331.115 1 1/4-1229.529.9(80%)29.46429.9211 1/2-63434.2(85%)33.52834.29 1 3/8-1232.833(80%)32.63933.0961 3/4-539.539.8(85%)38.96439.827 1 1/2-123636.2(80%)35.81436.2712-4 1/245.253.3(90%)44.67945.593 螺纹底孔直径表(切削)缝纫机螺纹 缝纫机螺纹螺纹尺寸钻头直径2级螺纹2级内螺纹小径螺纹尺寸钻头直径2B级螺
19、纹内螺纹小径底孔直径最小直径最大直径底孔直径最小直径最大直径SM 1/16-801.251.28(75%)1.2111.2815/64-641.551.57(80%)1.5131.5933/32-1002.12.15(70%)2.0812.1563/32-1001.851.91(80%)1.8411.936 1/8-442.52.58(80%)2.4852.605 1/8-402.452.52(80%)2.4212.5519/64-402.852.91(80%)2.8182.94811/64-403.653.71(80%)3.6123.7423/16-323.93.94(80%)3.823.9
20、83/16-283.73.82(80%)3.6843.8447/32-324.74.73(80%)4.6144.77415/24-284.95.01(80%)4.8755.055 1/4-405.65.69(80%)5.5965.726 1/4-285.35.41(80%)5.2725.452SM 1/4-245.15.25(80%)5.0865.2669/32-286.16.2(80%)6.0666.2569/32-205.75.82(80%)5.6345.8245/16-286.96(80%)6.867.055/16-246.76.84(80%)6.6746.8645/16-186.36.
21、38(85%)6.2546.444 3/8-288.58.58(80%)8.4478.637 3/8-187.97.97(85%)7.8438.0537/16-2810.110.17(80%)10.03410.2247/16-169.39.36(85%)9.229.44 1/2-2811.711.76(80%)11.62211.812 1/2-2011.311.38(80%)11.1911.41 1/2-1210.310.36(85%)10.1810.42螺纹底孔直径表(切削)英制 粗牙螺纹 螺纹尺寸底孔直径嵌合率A列(硬材质)B列(软材质)A列直径B列直径内螺纹最小径内螺纹最大径W 1/82
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