螺紋尺寸和公差

1、M米制粗牙螺紋基本牙型與尺寸和公差帶H二公P=0.866025PHi=-|-H=0.5413PoH2=騎H=0.61343Pd2=D2=d-0.64952Pdi=d-2H=d-1.22687PrtL=0.14434-0d=D?距P螺紋中徑d2=D2dlDl外螺紋全齒商H2配合齒扁Hl螺紋中蠱尺寸（6H公差帚級別）絲借螺紋中徑（H2公差帚級別為例）minmaxminmaxM30.52.6722.3872.4590.3070.2712.6752.7752.6992.714M3.50.63.1102.7642.85003680.3253.1103.2223.1373.155M40.73.5453.1

2、413.2420.4290.3793.5453.6633.5743.593M50.84.4804.0194.1340.4910.4334.4804.6054.5105.530M61.05.3504.7734.9370.6130.5415.3505.5005.3855.408M71.06.3505.7735.9370.6130.5416.3506.5006.3856.408M81.257.1886.4666.6470.7670.6777.1887.3487.2267.251MIO1.59.0268.160&3760.9200.8129.0269.2069.0689.096Ml21.7510.86

3、39.85310.1061.0740.94710.86311.06310.91110.943M142.012.70111.54611.8351.2271.08312.70112.91312.75212.786Ml62.014.70113.54613.8351.2271.08314.70114.91314.75214.786Ml82.516.37314.93315.2941.5341.35316.37616.60016.43016.466M202.518.37616.93317.2941.5341.35318.37618.60018.43018.466M222.520.37618.93319.2

4、941.5341.35320.37620.60020.43020.466MF米制細(xì)牙螺紋基本牙型與尺寸和公差帶內(nèi)螺紋d=D螺距P螺紋中咎d2=D2dl內(nèi)翊各D1外螺紋全齒商H2配合齒高H1螺紋中徑尺寸（6H公差常級別）絲刪紋中徑（H2公差帶級別為例）minmaxminmaxM30.352.7732.5712.6210.2150.1892.7732.8632.7942.809M3.50.352.2733.0713.1210.2150.1893.2733.3633.2943.309M40.53.6753.3873.4590.3070.2713.6753.7753.6993.714M50.54.67

5、54.3874.4590.3070.2714.6754.7754.6994.714M60.755.5135.0805.1880.4600.4065.5135.6455.5455.566M81.07.3506.7736.9170.6130.5417.3507.5007.3857.408M101.09.3508.7738.9170.6130.54193509.5009.3859.408M101.259.1888.4668.6470.7670.6779.1889.3489.2269.251Ml21.2511.18810.46610.6470.7670.67711.18811.36811.22611.

6、251M121.511.02610.16010.3760.9200.81211.02611.21611.06811.096M141.513.02612.160123760.9200.81213.02613.21613.06813.096M161.515.02614.16014.3760.9200.81215.02615.21615.06815.096Ml81.517.02616.16016.3760.9200.81217.02617.21617.06817.096Ml82.016.70115.54615.8351.2271.08316.70116.91316.75216.786M201.519

7、.02618.16018.3760.9200.81219.02619.21619.06819.096M202.018.70117.54617.83512271.08318.70118.91318.75218.786M221.521.02620.16020.3760.9200.81221.02621.21621.06821.096M222.020.70119.54619.83512271.08320.70120.91320.75220.786DUNC統(tǒng)一粗牙螺紋基本牙型與尺寸和公差帶H=-P=0.866025P曰=尋H=0.5413PH2=H=0.61343Pd2=D2=d-0.64952Pdi

8、=d-2H=d-1.22687Pr乞,=0.14434P代號（螺紋直徑一25.4m內(nèi)牙數(shù)）螺距Pd=D螺紋中徑32=02斕紋4餡D1dl螺紋中錘尺寸絲律螺紋中徑2B3Bmin2Bmax3BmaxminmaxNO.5400.6353.1752.7462.4872.3952.7642.8472.8272.7762.789NO.6320.7943.5052.9902.6472.5322.9903.0843.0583.1053.028NO.8320.7944.1663.6503.3073.1933.6503.7463.7213.6753.688NO.1()241.0584.8264.1383.6803

9、.5284.1384.2474.2194.9634.176NO.12241.0585.4864.7984.3414.1884.7984.9104.8824.8234.836UNC1/4201.2706.3505.5244.9764.7935.5245.6465.6165.5755.588UNC5/16181.4117.9387.0216.4116.2057.0217.1557.1207.0717.084UNC3/8161.5889.5258.4947.8057.5778.4948.6398.6038.5458.557UNC7/16141.81411.1129.9349.1498.8879.93

10、410.08910.0519.9859.997UNC1/2131.95412.70011.43010.58410.30211.43011.59511.55211.48111.494UNC9/16122.11714.28812.91311.99611.69212.91313.08613.04312.96412.977UNC5/8H-112.30915.87514.37613.37613.04314.37614.55914.51414.42714.440UNC3/4102.54019.05017.39916.22915.93317.39917.59517.54417.45017.463UNC7/8

11、92.82222.22520.39019.16918.76320.39120.59920.54620.45520.467UNClH-83.17525.40023.33821.96321.50423.33823.56123.50523.40123.414p外噱紋UNF統(tǒng)一細(xì)牙螺紋基本牙型與尺寸和公差帶內(nèi)喋紋H=-P=0.866025PHi=?H=0.5413PH2二抹H二0.63刁d2=D2=d-0.64952Pdi=d-2H=d-1.22687Pr心牛=0.14434P代號（螺紋直徑一螺距螺紋大咎螺紋中徑內(nèi)罐勿輕夕噪沁螺紋中徑尺寸軸細(xì)徑（2級）25.4m內(nèi)牙數(shù))Pd=Dd2=D2DIdl2B3

12、BminZBmax3BmaxminmaxNO.5440.5773.1752.7992.5502.4662.7992.8802.8602.8122.824NO.6400.6353.5053.0942.8172.7253.0943.1803.1573.1083.119NO.8360.7064.1663.7083.4013.2993.7083.8003.7773.7213.734NO.10320.7944.8264.3103.9763.8534.3104.4094.3844.3364.348NO.12280.9075.4864.8974.5034.3744.8975.0044.9764.9234.9

13、35UNC1/4280.9076.3505.7615.3675.2375.7615.8705.8425.7995.812UNC5/16241.0587.9387.2496.7926.6407.2497.3717.3417.2877.300UNC3/8241.0589.5258.8378.3798.2278.8378.9618.9318.8758.887UNC7/16201.27011.11210.2879.7389.55510.28710.42410.39110.33810.351UNC1/2201.27012.70011.87411.32611.14311.87412.01711.98111

14、.92511.938UNC9/16T81.41114.28813.37112.76112.55513.37113.52013.48213.42113.434UNC5/8181.41115.87514.95814.34814.14314.95815.11015.07215.00915.022UNC3/4161.58819.05018.01917.33017.10218.01918.18418.14318.07018.082UNC7/8141.81422.22521.04620.26220.00021.04621.22421.18121.11021.123UNC1J22.11725.40024.0

15、2623.10922.80424.02624.21924.17124.08924.102G(BSP)非螺紋密封的管螺紋基本牙型與尺寸25.4口每25.4mm內(nèi)牙數(shù)H=0.96049PH1=0.640327Pr=0.137329PH/6=0.160082螺紋代號每25.4mm內(nèi)牙數(shù)螺距Pmm嫖紋大徑d=Dmm螺紋中徑d2=D2mm螺紋小徑dl=DlmmHlmmRmm螺紋中徑公差常絲惶螺紋中徑公差帚minmaxminmaxG1/8280.9079.7289.1478.5660.5810.1259.1479.2549.1779.194G1/4191.33713.14712.30111.4450.85

16、60.18412.30112.42612.36612.356G3/8191.33716.66215.80614.9500.8560.18415.80615.93315.80115.861G1/2141.81420.95519.79318.6311.1620.24919.79319.93519.82819.848G5/8141.81422.91121.74920.5871.1620.24921.74921.89121.78421.804G3/4141.81426.44125.27924.1171.1620.24925.27925.42125.31425.334G7/8141.81432.2012

17、9.03927.8771.1620.24929.03929.18129.07429.094G111230933.24931.77030.2911.4790.31731.77031.95031.81531.839G1-1/8112.30937.89736.41834.9391.4790.31736.41836.59836.46336.487G1-1/4112.30941.91040.43138.9521.4790.31740.43140.61140.47640.500G1-3/8112.30944.32342.84441.3651.4790.31742.84443.02442.88942.913

18、G1-1/2”112.30947.80346.32444.8451.4790.31746.32446.50446.37446.398G1-3/4”112.30953.74652.26750.7881.4790.31752.26752.44752.32752.354G211230959.61458.13556.6561.4790.31758.13558.31558.19558.222絲錐圖標(biāo)與符號說明Mivir 入幣J細(xì)才日13除級UNC -統(tǒng)一粗牙螺紋UNF- -統(tǒng)一細(xì)牙螺紋G (BSP)非璟紋密封的管螺紋螺孔型式T1通孔Y 1.2dT2通孔Y 2dB1不通孔1.2dB2不通孔- 1.8dB3不通孔 2.2dd為螺紋大徑w(BSW)惠氏螺紋NPT_00牙形角圓錐管螺紋RP通一用螺紋密封的圓柱管螺紋RC(BSPT)用螺紋密封的圓柱管螺紋EC通一安裝鋼絲螺套用內(nèi)螺紋螺紋齒形角：絲錐類別：6055N加工普通結(jié)構(gòu)鋼、軟的灰鑄鐵中等硬度的有色金屬加工特別硬的、硬而韌的材料W加工特別軟與韌的材料絲錐結(jié)構(gòu)種類：P3-直槽絲錐螺尖絲錐螺旋槽絲錐跳牙絲錐A型帶冷卻孔絲錐（用于不通孔）B型帶冷卻孔絲錐（用于通孔）擠壓絲錐帶油槽擠壓絲錐鉆攻復(fù)臺絲錐絲錐采用的標(biāo)準(zhǔn)：中國國家標(biāo)淮中國機(jī)械行業(yè)標(biāo)準(zhǔn)JB國際標(biāo)準(zhǔn)ISO德國標(biāo)準(zhǔn)帶級別的螺紋絲錐材料：HS