公制外螺纹(6g)常用规格极限尺寸表(粗牙)

1 美制外螺纹（2a）常用规格极限尺寸表（粗牙） 公称尺寸和 每英寸牙数 螺纹 系列 代号 大径极限中径极限 小径max 螺胚直径 最小最大最小最大最小最大 8-32 unc 0.15710.16310.13990.14280.1248 3.583.61 (0.164-32)3.99034.14273.55353.62713.1699 10-240.18180.18900.15860.16190.1379 4.074.10 (0.190-24)4.61774.80064.02844.11233.5027 12-240.20780.21500.18450.18790.1639 4.724.75 (0.216-24)5.2781

公制外螺纹（6g）常用规格极限尺寸表（粗牙） 公称直径×螺距精度大径中径小径螺胚直 径 最大最小最大最小最大最小最大 m3×0.56g2.9802.8742.6552.5802.4392.602.63 m4×0.73.9783.8383.5233.4333.2203.473.50 m5×0.84.9764.8264.4564.3614.1104.404.43 m6×15.9745.7945.3245.2124.8915.265.29 m8×1.257.9727.7607.1607.0426.6197.107.14 m10×1.59.9689.7328.9948.8628.3448.928.96 m12×1.7511.96611.70110.82910.679

公制外螺纹（粗牙） 公称直径× 螺距 大径中径小径螺胚直径 最大最小最大最小最大最小最大 m3×0.52.9802.8742.6552.5802.4392.602.63 m4×0.73.9783.8383.5233.4333.2203.473.50 m5×0.84.9764.8264.4564.3614.1104.404.43 m6×15.9745.7945.3245.2124.8915.265.29 m8×1.257.9727.7607.1607.0426.6197.107.14 m10×1.59.9689.7328.9948.8628.3448.928.96 m12×1.7511.96611.70110.82910.67910.07210.7510.79 m

公制外螺纹（6g）常用规格极限尺寸表（粗牙） 小径 最大最小最大最小最大最小最大 m3×0.52.9802.8742.6552.5802.4392.602.63 m4×0.73.9783.8383.5233.4333.2203.473.50 m5×0.84.9764.8264.4564.3614.1104.404.43 m6×15.9745.7945.3245.2124.8915.265.29 m8×1.257.9727.7607.1607.0426.6197.107.14 m10×1.59.9689.7328.9948.8628.3448.928.96 m12×1.7511.96611.70110.82910.67910.07210.7510.79 m14×213.9621

大径 最小最大最小最大最小 m3×0.3532.8632.7732.7212.621 m4×0.543.7753.6753.5593.459 m5×0.554.7754.6754.5994.459 m6×0.7565.6455.5135.3785.188 m8×0.7587.6457.5137.3787.188 m8×187.57.357.1536.917 m10×0.75109.6459.5139.3789.188 m10×1108.59.359.1538.917 m10×1.25109.3489.1888.9128.647 m12×11211.5111.3511.15310.917 m12×1.251211.36811.18810.91210.647 m12×1.51

最大最小最小1最大最小公差范圍最小最大最小最大公差范圍 2a0.00050.05950.0563⋯0.05140.04960.00180.04462b0.04650.05140.05190.05420.00230.0600 3a0.00000.06000.0568⋯0.05190.05060.00130.04513b0.04650.05140.05190.05360.00170.0600 2a0.00060.07240.0686⋯0.06230.06030.00200.05382b0.05610.06230.06290.06550.00260.0730 3a0.00000.07300.0692⋯0.06290.06140.00150.05443b0.05610

内外螺纹极限尺寸标准

mm sizethreaddesignationclassmaxminmaxminmax 0.25m0.25x0.0756g0.2500.2350.2010.1870.160 m0.25x0.0754g6g0.2500.2350.2010.1930.160 0.3m0.3x0.086g0.3000.2840.2480.2340.204 m0.3x0.084g6g0.3000.2840.2480.2390.204 m0.3x0.096g0.3000.2830.2420.2260.192 m0.3x0.094g6g0.3000.2830.2420.2330.192 0.35m0.35x0.096g0.3500.3330.2920.2770.242 m0.35x0.094g6g0.350

常用公制螺纹基本尺寸和极限尺寸表

从到minmaxminmax从到maxminmaxminmaxmin 31.54.532.6752.7752.4592.59931.54.52.9802.8742.6552.5802.3672.256 3.51.753.53.1103.2222.8503.0103.51.753.4793.3543.0893.0042.7432.615 42643.5453.6633.2423.4224263.9783.8383.5233.4333.1192.979 52.57.554.4804..6054.1344.33452.57.54.9764.8264.4564.3613.9953.842 63965.3505.5004.9175.1

公制外螺纹规格表

公制外螺纹（6g）常用规格极限尺寸表（粗牙） 小径 最大最小最大最小最大最小最大 m3×0.52.9802.8742.6552.5802.4392.602.63 m4×0.73.9783.8383.5233.4333.2203.473.50 m5×0.84.9764.8264.4564.3614.1104.404.43 m6×15.9745.7945.3245.2124.8915.265.29 m8×1.257.9727.7607.1607.0426.6197.107.14 m10×1.59.9689.7328.9948.8628.3448.928.96 m12×1.7511.96611.70110.82910.67910.07210.7510.79 m14×213.9621

1 公制外螺纹（细牙） 公称直径× 螺距 大径中径小径螺胚直径 最大最小最大最小最大最小最大 m3x0.352.9812.8962.7542.6872.6022.712.73 m4x0.53.9803.8743.6553.5803.4393.603.63 m5×0.54.9804.8744.6554.5804.4394.604.63 m6×0.755.9785.8385.4915.3915.1665.425.46 m8×0.757.9787.8387.4917.3917.1667.427.46 m8×17.9747.7947.3247.2126.8917.267.29 m10×0.759.9789.8389.4919.3919.1669.429.46 m10×

maxminmaxminmaxminmaxmin m31.54.56g2.9802.8742.6552.5806h2.7752.6752.5902.495 m4266g3.4783.7493.5233.4336h3.6633.5453.4223.242 m52.57.56g4.9794.7604.4564.3616h4.6054.4804.3344.134 7g4.9764.7404.4564.3067h4.6404.4804.3844.134 m6396g5.9745.7325.3245.2126h5.5005.3505.1534.917 7g5.9745.6945.3245.1447h5.5405.3505.2174.917 m8412

公称直径d螺距t中径d2内径d1工作高度h圆角半径r 10.250.8380.7290.1350.036 1.10.250.9380.8290.1350.036 1.20.251.0380.920.1350.036 1.40.31.2051.0750.1620.043 1.60.351.3731.2210.1890.051 1.80.351.5731.4210.1890.051 20.41.741.5670.2170.058 2.20.451.9081.7130.2440.065 2.50.452.2082.0130.2440.065 30.52.6752.4590.2710.072 3.50.63.112.850.3250.087 40.73.5453.2420

大径中径小径牙高大径中径小径牙高 10.2510.8380.7290.135121.751210.86310.1060.947 1.10.251.10.9380.8290.1351421412.70111.8351.083 1.20.251.21.0380.9290.1351621614.70113.8351.083 1.40.31.41.2051.0750.162182.51816.37615.2941.353 1.60.351.61.3731.2210.189202.52018.37617.2941.353 1.80.351.81.5731.4210.189222.52220.37619.2941.353 20.421.741.567

公制外螺纹（6g）常用规格极限尺寸表（粗牙） 小径 最大最小最大最小最大最小最大 m3×0.52.9802.8742.6552.5802.4392.602.63 m4×0.73.9783.8383.5233.4333.2203.473.50 m5×0.84.9764.8264.4564.3614.1104.404.43 m6×15.9745.7945.3245.2124.8915.265.29 m8×1.257.9727.7607.1607.0426.6197.107.14 m10×1.59.9689.7328.9948.8628.3448.928.96 m12×1.7511.96611.70110.82910.67910.07210.7510.79 m14×213.9621

双外螺纹接头是一种常见的管道连接件，广泛应用于各种工业管道系统中。其尺寸的精确性和标准化对于确保管道系统的稳定运行和安全至关重要。本文将详细探讨双外螺纹接头的尺寸规格，以便于在实际应用中进行正确选择和使用。

螺纹 螺距p /mm 小径d1 /mmmax 小径d1 /mmmin 中径d2 /mmmax 中径d2 /mmmin 旋合长度 /mm＞ 旋合长度 /mm≤ m10.250.7850.7290.8940.8380.61.7 m1.20.250.9850.9291.0941.0380.61.7 m1.40.31.1421.0751.2651.2050.72 m1.60.351.3211.2211.4581.3730.82.6 m1.80.351.5211.4211.6581.5730.82.6 m20.41.6791.5671.831.7413 m2.50.452.1382.0132.3032.2081.33.8 m30.52.5992.4592.7752.6751.5

螺纹尺寸螺纹尺寸 （英寸）大径中径小径（英寸）psigmpapsigmpa 5/16247.9387.2496.7925/1624456831.5456831.5 7/162011.11310.2879.7387/1620456831.5456831.5 1/22012.711.87511.3251/220456831.5362625 9/161814.28813.32512.5599/1618456831.5362625 3/41619.0518.01917.3313/416456831.5362625 1-1/161226.98825.61324.6951-1/1612362625290020 1-5/161233.33831.96331.0

尺寸 偏差 ±tpl 尺寸 偏差 ±tpl/2 磨损下限尺寸 m1.41.41.2050.260.300.002####0.0070.00950.00751.4020.00701.20720.00351.19771.349 m1.71.71.4730.30.3500.006####0.0090.01250.00951.7060.00901.47870.00451.46621.638 m221.7400.350.400.006####0.0090.01250.00952.0060.00901.74620.00451.73371.921 m2.52.52.2080.390.4500.006####0.0090.01250.00952.5060.00902.21370.0

公制(米制)螺纹极限尺寸