国标,英标,美标螺纹规格表.pdf

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1、G、RP（内）PF（日）0.6403t圆柱管螺纹（55°）上部H/6下部H/6削平ZG、R（外）、RC（内）、PT（外）、NPT（内）圆锥管螺纹（55°）上部H/6下部H/6削平Z0.8t布锥管螺纹（60°）上部0.033t下部0.033tBSP、BSPP=G英制管螺纹（55°）上部H/6下部H/6削平UNC（粗）、UNF（细）美制螺纹（60°）上部H/8下部H/4削平BSW（粗）、BSF（细）惠制螺纹（55°）上部H/6下部H/6削平注意：美制与惠制螺纹均为紧固件类螺纹圆柱管螺纹公称直径为管子内径尺寸。公制螺纹加工表内螺纹小径：D

2、1=D-1.082532t外螺纹小径：d1=d-1.082532t公制螺纹粗牙（60°）公制螺纹细牙（60°）螺纹规格螺距（t）底孔深度螺纹规格螺距（t）底孔深度M30.502.507.50M81.007.0015.00M40.703.3010.50M101.009.0015.00M50.804.2012.00M121.5010.5022.50M61.005.0015.00M141.5012.5022.50M81.256.7518.75M161.5014.5022.50M101.508.5022.50M181.5016.5022.5

3、0M121.7510.2526.25M201.5018.5022.50M142.0012.0030.00M221.5020.5022.50M162.0014.0030.00M242.0022.0030.00M182.5015.5037.50M272.0025.0030.00M202.5017.5037.50M302.0028.0030.00M222.5019.5037.50M332.0031.0030.00M243.0021.0045.00M362.0034.0030.00M273.0024.0045.00M422.0040.003

4、0.00M303.5026.5052.50M482.0046.0030.00注意：底孔尺寸均为加工螺纹孔时专用尺寸。深度尺寸均为加工螺纹孔时孔深度尺寸。（规定为15倍螺距）G英制圆柱管螺纹（55°）加工一览表小径：d1=d-1.2807t公称直径牙/寸螺距（t）底孔深度螺纹大径1/8280.9078.5014.09.72901/4191.33711.5020.013.15803/8191.33715.0020.016.66301/2141.81418.5027.520.95605/8141.81420.5027.522.91203/

5、4141.81424.0027.526.44207/8141.81428.0027.530.20201112.30930.5035.033.250011/8112.30935.0035.037.898011/4112.30939.0035.041.912013/8112.30941.5035.044.325011/2112.30945.0035.047.805013/4112.30951.0035.053.74802112.30957.0035.059.616021/4112.30963.0035.065.712021/2112.3

6、0972.5035.075.187023/4112.30979.0035.081.5370ZG英制锥管螺纹（55°）加工一览表小径：d1=d-1.2807t公称直径牙/寸螺距底孔深度螺纹大径1/8280.9078.57-8.2714.09.72901/4191.33711.5-11.120.013.15803/8191.33715.0-14.620.016.66301/2141.81418.6-18.227.020.95603/4141.81424.1-23.527.026.44201112.30930.3-29.635.033.2

7、50011/4112.30939.0-38.135.041.912011/2112.30944.8-44.035.047.80502112.30956.7-55.735.059.616021/2112.30972.2-71.135.075.8170注意：底孔尺寸均为加工螺纹孔时专用尺寸。深度尺寸均为加工螺纹孔时孔深度尺寸。（规定为15倍螺距）Z圆锥管螺纹（布锥管螺纹）（60°）小径：d1=d-1.6t公称直径牙/寸螺距（t）底孔深度螺纹大径1/16270.9416.4-6.115.07.89501/8270.9418.8-8.515

8、.010.27201/4181.41111.3-1121.013.57203/8181.41114.8-14.421.017.05501/2141.81418.3-17.827.021.22303/4141.81423.7-23.12