公制內(nèi)螺紋(6H)常用規(guī)格極限尺寸表(細牙)

公制外螺紋（6g）常用規(guī)格極限尺寸表（粗牙） 小徑 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

公制外螺紋(6g)常用規(guī)格極限尺寸表(粗牙) 公稱直徑×螺 距 螺紋精度等 級 大徑中徑小徑螺胚直徑 最大最小最大最小最大最小最大 m3×0.5 6g 2.9802.8742.6552.5802.439 2.602.63 m4×0.7 3.9783.8383.5233.4333.220 3.473.50 m5×0.8 4.9764.8264.4564.3614.110 4.404.43 m6×1 5.9745.7945.3245.2124.891 5.265.29 m8×1.25 7.9727.7607.1607.0426.619 7.107.14 m10×1.5 9.9689.7328.9948.8628.344 8.928.96 m12×

公制細牙內(nèi)螺紋公制粗牙內(nèi)螺紋 規(guī)格標準徑6h精度規(guī)格標準徑6h精度 dmaxdmindmaxdmin m2.5*0.352.152.1842.121m1.4*0.31.101.161.075 m3.0*0.352.652.6842.621m1.6*0.351.251.3211.221 m3.5*0.353.153.2213.121m1.8*0.351.451.5211.421 m4.0*0.503.503.5993.459m2.0*0.41.601.6791.567 m4.5*0.504.004.0993.959m2.2*0.451.751.8381.713 m5.0*0.504.504.5994.459m2.5*0.452.052.1382.013 m5.5*0.50

常用公制螺紋基本尺寸和極限尺寸表

從到minmaxminmax從到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

1 美制外螺紋（2a）常用規(guī)格極限尺寸表（粗牙） 公稱尺寸和 每英寸牙數(shù) 螺紋 系列 代號 大徑極限中徑極限 小徑max 螺胚直徑 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

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

內(nèi)螺紋無縫鋼管部分尺寸規(guī)格及螺紋參數(shù) a型鋸齒內(nèi)螺紋無縫鋼管部分尺寸規(guī)格及螺紋參數(shù) 高壓內(nèi)螺紋無縫鋼管共有a/b兩種齒型，下面我們分別描述下兩種齒型的形態(tài)、參數(shù)。 一a型鋸齒內(nèi)螺紋無縫鋼管示意圖 橫向縱向 a——“a”型齒內(nèi)螺紋管外徑；c——螺紋根部內(nèi)徑；e——最小內(nèi)徑；f——最小壁厚； g——螺紋頭數(shù)；i——螺紋頂寬（周向）；j——螺紋高度；k——螺紋側(cè)邊角度； o——螺紋根部圓角半徑；m——螺紋節(jié)距；n——螺紋導(dǎo)程；q——螺旋升角； t——螺紋頂寬（軸向）；u——螺紋頂部（軸向）槽寬。圖1“a”型齒型 二a型鋸齒內(nèi)螺紋無縫鋼管規(guī)格參數(shù) 鋼管 公稱外 徑 螺紋 根部 內(nèi)徑 最小 內(nèi)徑 公稱 壁厚 最小 壁厚 螺紋 頭數(shù) 螺紋 頂寬 螺紋 高度 螺紋側(cè) 邊角度 螺紋根 部圓角 半徑 螺紋 節(jié)距 螺紋導(dǎo) 程 螺紋 升角 螺紋 頂寬

螺紋 螺距p /mm 小徑d1 /mmmax 小徑d1 /mmmin 中徑d2 /mmmax 中徑d2 /mmmin 旋合長度 /mm＞ 旋合長度 /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

大徑中徑小徑牙高大徑中徑小徑牙高 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

公制外螺紋（6g）常用規(guī)格極限尺寸表（粗牙） 小徑 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

螺紋公制尺寸表

常用公制螺紋規(guī)尺寸標準對照表

尺寸偏差尺寸 偏差 ±tr/2 磨損上限 m1.71.71.4730.30.35-0.019-0.002####0.010.0070.0120.0091.688/1.45570.00501.4677 m221.7400.350.4-0.019-0.002####0.010.0070.0120.0091.988/1.71920.00501.7312 m2.52.52.2080.390.45-0.02-0.002####0.010.0070.0120.0092.487/2.18570.00502.1977 m2.62.62.3080.390.45-0.02-0.002####0.010.0070.0120.0092.587/2.28570.00502.2977 m

螺紋尺寸螺紋尺寸 （英寸）大徑中徑小徑（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 磨損下限尺寸 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)螺紋極限尺寸

從到minmaxminmax從到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

常用螺紋 螺紋類型外圓刀具尺寸 攻(車)螺紋前外徑(工序 卡標注用） 外螺紋6g(2a) 零件圖標注用 內(nèi)螺紋6h(2b) 零件圖標注用 內(nèi)孔刀具尺寸 攻(車)螺紋前內(nèi)徑(工序 卡標注用) m3*0.5φ3(-0.05/-0.1)φ3(-0.02/-0.126)φ2.459(+0.14/0)φ2.5(+0.08/0) m3*0.35φ3(-0.05/-0.1)φ3(-0.019/-0.104)φ2.621(+0.1/0)φ2.6(+0.12/+0.04) m4*0.7φ4(-0.05/-0.15)φ4(-0.022/-0.162)φ3.242(+0.18/0)φ3.3(+0.1/0) m4*0.5φ4(-0.05/-0.1)φ4(-0.02/-0.126)φ3.459(+0.14/0)φ3.5(+0.1/0) m5*0.8

公稱通徑 nps 1/4″81912.711.29.7141/4″1813.2-0.211.4+0.210.2141/41913.15 3/8101916.114.510.1153/81816.6-0.214.8+0.210.4153/81916.66 1/2151420.318.813.2181/21420.7-0.218.5+0.213.6181/21420.95 3/4201425.724.214.5193/41426-0.323.7+0.213.7193/41426.44 1251132.430.416.824111.532.6-0.329.7+0.217.42311133.25 1-1/43211413919.125

1 公制外螺紋（細牙） 公稱直徑× 螺距 大徑中徑小徑螺胚直徑 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×

公制粗牙內(nèi)螺紋 規(guī)格標準徑 6h精度 dmaxdmin m1.4*0.31.101.161.075 m1.6*0.351.251.3211.221 m1.8*0.351.451.5211.421 m2.0*0.41.601.6791.567 m2.2*0.451.751.8381.713 m2.5*0.452.052.1382.013 m3.0*0.52.502.5992.459 m3.5*0.62.903.012.85 m4.0*0.73.303.4223.242 m4.5*0.753.753.8783.688 m5.0*0.84.204.3344.134 m5.5*0.55.005.0994.959 m6.0*1.005.005.1534.917 m