常用的螺纹外径及三针测量标准.xls

螺纹规格螺纹规格角度(角度( ) )针径(针径( d d0 0) )螺距(P)螺距(P) 1/4-28 UNF-2A1/4-28 UNF-2A60606.32466.32466.15956.15955.73535.73535.60835.60830.52340.52346.52006.52006.39306.39300.90710.9071 5/16-24 UNF-2A5/16-24 UNF-2A60607.90967.90967.72677.72677.22127.22127.12727.12720.61070.61078.13678.13678.04278.04271.05831.0583 7/16-20 UNF-2A7/16-20 UNF-2A606011.079511.079510.873710.873710.254010.254010.147310.14730.73280.732811.352511.352511.245911.24591.27001.2700 9/16-24 UNEF-2A9/16-24 UNEF-2A606014.257014.257014.074114.074113.568713.568713.469613.46960.61070.610714.484114.484114.385114.38511.05831.0583 10/48 UNF-2A10/48 UNF-2A60604.80574.80574.69144.69144.46284.46284.39674.39670.30530.30534.92054.92054.85454.85450.52920.5292 2-56 UNC-2A2-56 UNC-2A60602.16922.16922.06502.06501.87451.87451.82121.82120.26170.26172.26692.26692.21352.21350.45360.4536 3-56 UNF-2A3-56 UNF-2A60602.49682.49682.39272.39272.20222.20222.14632.14630.26170.26172.59452.59452.53862.53860.45360.4536 6-40 UNF-2A6-40 UNF-2A60603.48493.48493.35533.35533.07343.07343.00743.00740.36640.36643.62273.62273.55663.55660.63500.6350 8-32 UNC-2A8-32 UNC-2A60604.14274.14273.99033.99033.62713.62713.55353.55350.45800.45804.31374.31374.24014.24010.79380.7938 10-32 UNF-2A10-32 UNF-2A60604.80314.80314.65074.65074.28754.28754.21134.21130.45800.45804.97414.97414.89794.89790.79380.7938 公 司 标 准公 司 标 准 常用美制螺纹外径、中径及三针测量标准常用美制螺纹外径、中径及三针测量标准 螺纹外径(螺纹外径( D)D)螺纹中径(螺纹中径( d d2 2) )三针值(M)三针值(M) 公 司 标 准公 司 标 准 常用美制螺纹外径、中径及三针测量标准常用美制螺纹外径、中径及三针测量标准 公 司 标 准公 司 标 准 常用美制螺纹外径、中径及三针测量标准常用美制螺纹外径、中径及三针测量标准 螺纹规格螺纹规格角度(角度( ) )针径(针径( d0)d0)螺距(P)螺距(P) M1.40.3M1.40.360601.41.41.3251.3251.2051.2051.1491.1490.17310.17311.46451.4645 1.40851.40850.30.3 M1.60.35M1.60.3560601.5811.5811.4961.4961.3541.3541.2911.2910.20200.20201.65681.6568 1.59381.59380.350.35 M1.80.35M1.80.3560601.7811.7811.6961.6961.5541.5541.4911.4910.20200.20201.85681.8568 1.79381.79380.350.35 M20.4M20.460601.9811.9811.8861.8861.7211.7211.6541.6540.23080.23082.0672.0672 20.40.4 M2.50.45M2.50.4560602.482.482.382.382.1882.1882.1172.1170.25970.25972.57732.5773 2.50632.50630.450.45 M30.5M30.560602.982.982.8742.8742.6552.6552.582.580.28850.28853.08753.0875 3.01253.01250.50.5 M3.50.6M3.50.660603.4793.4793.3543.3543.0893.0893.0043.0040.34620.34623.6083.6083.5233.5230.60.6 M40.7M40.760603.9783.9783.7493.7493.5233.5233.4333.4330.40390.40394.12854.1285 4.03854.03850.70.7 M50.8M50.860604.9764.9764.764.764.4564.4564.3614.3610.46160.46165.1485.1485.0535.0530.80.8 M61.0M61.060605.9745.9745.7325.7325.3245.3245.2125.2120.57700.57706.1896.1896.0776.0771 1 M71.0M71.060606.9746.9746.7946.7946.3246.3246.2126.2120.57700.57707.1897.1897.0777.0771 1 M81.25M81.2560607.9727.9727.767.767.167.167.0427.0420.72130.72138.24138.2413 8.12338.12331.251.25 M101.5M101.560609.9689.9689.7329.7328.9948.9948.8628.8620.86550.865510.29210.29210.1610.161.51.5 公 司 标 准 公 司 标 准 常用的螺纹外径及三针测量标准常用的螺纹外径及三针测量标准 螺纹外径(螺纹外径( D)D)螺纹中径(螺纹中径( d2)d2)三针值(M)三针值(M) 公 司 标 准 公 司 标 准 常用的螺纹外径及三针测量标准常用的螺纹外径及三针测量标准 螺纹角度螺纹角度针径公式针径公式 60d0=0.577P 55d0=0.564P 30d0=0.518P 40d0=0.533P 29d0=0.516P d2:螺纹中径 d0：针径 P：螺距 d2:螺纹中径 d0：针径 P：螺距 :螺纹角度:螺纹角度 螺距P=25.4/B 公称外径D=(0.013*A+0.06)*25.4 螺距P=25.4/C 公称外径D=A*25.4/B 注:国标与美制螺纹牙角为60度,英制螺纹牙角55度 M=d2+4.994d0-1.933p d2:螺纹中径 d0：针径 P：螺距d2:螺纹中径