螺纹规中径尺寸及螺纹规精度表[1]

Norminal SizeThreads Per Inchand Series1AFor Bolts & ScrewsRing Thread GagesUnifiedNationalSeriesSeries2A3A23BasicP.D.1BFor Nuts & Tapped HolesPlug Thread GagesUnifiedNationalSeriesSeries2B3B230 (.060)-80 NF1 (.073)- NC2 (.006)-56 NC2 (.086)- NF3 (.099)-56 NF4 (.112)40 NC4 (.112) -48 NF5 (.125)-40 NC5 (.125)-44 NF6 (.138)-32 NC6 (.138)-40 NF8 (.1)-32 NC8 (.1)-36 NF10 (.190)-24 NC10 (.190)-32 NF12 (.216)-24 NC12 (.216)-28 NF12 (.216)-32 NEF1/4\"-20 NC1/4\"-28 NF1/4\"-32 NEF5/16\"-18 NC5/16\"-24 NF5/16\"-32 NEF3/8\"-16 NC3/8\"-24 NF3/8\"-28 NEF7/16\"-14 NC7/16\"-20 NF7/16\"-28 NEF1/2\"-13 NC1/2\"-20 NF1/2\"-28 NEF.4485.4411.4662.4598.37.3826.4037.3975.3331.3266.3468.3411.2752.2691.2843.2788.21.2108.2258.2208.0514.0496.0623.0603.0700.0717.0753.0733.0848.0825.0950.0925.0975.0954.1080.1054.1095.1070.1169.1141.1210.1184.1428.1399.1452.1424.1619.1586.1688.1658.1879.1845.1918.1886.1948.1917.21.2127.2258.2225.2287.2255.2752.2712.2943.2806.2912.2880.3331.3287.3468.3430.3537.3503.37.3850.4037.3995.4132.4110.4485.4435.4662.4619.4757.4720.0519.0506.0629.0614.0744.0728.0759.0744.0855.0838.0958.0939.0985.0967.1088.1069.1102.1083.1177.1156.1218.1198.1437.1415.1460.1439.1629.1604.1697.1674.18.1863.1928.1904.1957.1933.2175.2147.2268.2243.2297.2273.27.2734.2854.2827.2922.28.3344.3311.3479.3450.3547.3522.3911.3876.4050.4019.4143.4116.4500.4463.4675.43.4768.4740.0519.0502.0629.0610.0744.0724.0759.0740.0855.0833.0958.0934.0985.0963.1088.10.1102.1079.1177.1150.1218.1194.1437.1410.1460.1435.1629.1696.1697.1670.18.1856.1928.17.1957.1926.2175.2139.2268.2237.2297.2265.27.2723.2854.2821.2922.28.3344.3299.3479.3446.3547.3513.3911.3862.4050.4014.4143.4107.4500.4448.4675.4639.4768.4731.0519.0506.0629.0615.0744.0729.0759.0745.0855.0839.0958.0941.0985.0969.1088.1071.1102.1086.1117.1158.1218.1201.1437.1418.1460.1442.1629.1605.1697.1678.18.1865.1928.1906.1957.1935.2175.2149.2268.2246.2297.2275.21.2734.2854.2830.2922.29.3344.3312.3479.3455.3547.3523.3911.3875.4050.4042.4143.4118.4500.4463.4675.49.4768.4742.0519.0629.0744.0759.0855.0958.0985.1088.1102.1177.1218.1437.1460.1629.1697.18.1928.1957.2175.2268.2297.27.2854.2922.3344.3479.3547.3911.4050.4143.4500.4675.4768.4500.4597.4675.4759.3911.4003.4050.4131.3344.3429.3479.3553.27.2843.2854.2925.2175.2248.2268.2333.0519.0542.0629.0655.0744.0772.0759.0786.0855.0885.0958.0991.0985.1016.1088.1121.1102.1134.1177.1214.1218.1252.1437.1475.1460.1496.1629.1672.1697.1736.18.1933.1928.1970.1957.1998.2175.2224.2268.2311.2297.2339.27.2817.2854.2902.2922.29.3344.3401.3479.3528.3547.3591.3911.3972.4050.4104.4143.41.4500.4565.4675.4731.4768.4816.0519.0536.0629.08.0744.0765.0759.0779.0855.0877.0958.0982.0985.1008.1088.1113.1102.1126.1117.1204.1218.1243.1437.1465.1460.1487.1629.1661.1697.1726.18.1922.1928.1959.1957.1998.2175.2211.2268.2300.2297.2328.27.2803.2854.20.2922.2953.3344.3387.3479.3516.3547.3580.3911.3957.4050.4091.4143.4178.4500.4548.4675.4717.4768.4804.0519.0536.0629.08.0744.07.0759.0778.0855.0877.0958.0982.0985.1007.1088.1112.1102.1125.1177.1204.1218.1242.1437.14.1460.1485.1629.1662.1697.1724.18.1922.1928.1959.1957.1998.2175.2211.2268.2299.2297.2329.27.2805.2854.2887.2922.2955.3344.33.3479.3512.3547.3581.3911.3960.4050.4086.4143.4179.4500.4552.4675.4711.4768.4805.0519.0532.0629.03.0744.0759.0759.0773.0855.0871.0958.0975.0985.1001.1088.1105.1102.1118.1177.1196.1218.1235.1437.1456.1460.1478.1629.1653.1697.1716.18.1913.1928.1950.1957.1979.2175.2201.2268.2290.2297.2319.27.2794.2854.2878.2922.2945.3344.3376.3479.3505.3547.3571.3911.3947.4050.4076.4143.4168.4500.4537.4675.4701.4768.4794© 2001 Kennametal Inc.

Norminal SizeThreads Per Inchand Series1ABasicP.D.1B9/16\" -12 NC9/16\" -18 NF9/16\" -24 NEF5/8\" - 11 NC5/8\" - 18 NF5/8\" - 24 NEF11/16\" - 24 NEF3/4\" - 10 NC3/4\" - 16 NF3/4\" - 20 NEF13/16\" - 20 NEF7/8\" - 9 NC7/8\" - 14 NF7/8\" - 20 NEF15/16\" - 20 NEF1\" -8 NC1\" - 12 UNF1\" - 20 NEF11/16\" - 18 NEF1-1/8\" - 7 NC1-1/8\" - 12 NF1-1/8\" - 18 NEF1-3/16\" - 18 NEF1-1/4\" - 7 NC1-1/4\" - 12 NF1-1/4\" - 18 NEF1-5/16\" - 18 NEF1-3/8\" - 6 NC1-3/8\" - 12 NF1-3/8\" - 18 NEF1-7/16\" - 18 NEF1-1/2\" - 6 NC1-1/2\" - 12 NF1-1/2\" - 18 NEF.5068.4990.5250.5182.54.5561.5875.5805..6832.6744.7079.7004.8009.7914.8270.81.9168.9067.9441.93531.03301.01911.06911.06011.15501.14391.19411.18491.231.25231.31901.30961.331.37721.44401.4344.5068.5016.5250.5205.5342.5303.54.55.5875.5828.5667.5927.6592.6552.6832.6773.7079.7029.7162.7118.7787.7743.8009.7946.8270.8216.8412.8368.9036.91.9168.9100.9441.9382.9691.96161.02501.02031.03001.02281.06911.06311.08751.08281.14991.14501.15501.14761.19411.19791.21241.20751.27491.27001.231.26631.31901.31271.33741.33251.39991.39491.331.38121.44401.43761.46241.4574.5084.5045.52.5230.5354.5325.5660.5619.58.5854.5979.5949.6604.6574.6850.6806.7094.7056.7175.7142.7800.7767.8028.7981.8286.8245.8425.8392.9050.9016.9188.9137.9459.9415.9675.911.021.02281.03221.02681.07091.061.081.08531.15141.14781.15721.15171.19591.19131.21391.21031.271.27281.26671.26071.32091.31621.331.33531.40141.39771.39171.38561.44591.44111.46391.1402.5084.5028.52.5223.5354.5314.5660.5601.58.5848.5979.5938.6604.6563.6850.6786.7094.7049.7175.7129.7800.7754.8028.7958.8286.8237.8425.8378.9050.9003.9188.9112.9459.9403.9675.96271.021.02131.03221.02371.07091.06531.081.08371.15141.14621.15721.14871.19591.19031.21391.20861.271.27111.26671.25661.32091.31531.331.33351.40141.39601.39171.38161.44591.44031.46391.4584.5084.5044.52.5234.5354.5326.5660.5618.58.5859.5979.5950.6604.6575.6850.6805.7094.7062.7175.7143.7800.7768.8028.7979.8286.8250.8425.8392.9050.9017.9188.9134.9459.9419.9675.911.021.02281.03221.02631.07091.06691.081.08531.15141.14781.15721.15131.19591.19191.21391.21021.271.27271.26671.25961.32091.31691.331.33511.40141.39761.39171.38461.44591.44191.46391.4601.5084.52.5354.5660.58.5979..6604.6850.7094.7175.7800.8028.8286.8425.9050.9188.9459.96751.021.03221.07091.081.15141.15721.19591.21391.271.26671.32091.331.40141.39171.44591.4639.5084.5186.52.5353.5660.5767.58.5980.6850.6965.7094.7192.8028.8286.8392.9188.9320.9459.95731.03221.04631.07091.08261.51721.17161.19591.20791.26671.28221.32091.33321.39171.40751.44591.4584.5084.5152.52.5323.5354.5405.5660.5732.58.5934.5979.6031.6604.6656.6850.6927.7094.7159.7175.7232.7800.7857.8028.8110.8286.8356.8425.8482.9050.9109.9188.9276.9459.9535.9675.97341.021.03261.03221.04161.07091.07871.081.09571.15141.15771.15721.16681.19591.20391.21391.22021.271.28271.26671.27711.32091.32911.331.34521.40141.40791.39171.40221.44591.45421.46391.4704.5084.5135.52.5308.5354.5392.5660.5714.58.5934.5979.6018.6604.63.6850.6907.7094.7143.7175.7218.7800.7843.8028.80.8286.8339.8425.8468.9050.9094.9188.9254.9459.9516.9675.97191.021.03101.03221.03931.07091.07681.081.09351.15141.15611.15721.141.19591.20191.21391.21861.271.28111.26671.27451.32091.23701.331.34361.40141.40621.39171.39961.44591.45221.46391.4687.5084.5140.52.5305.5354.5394.5660.5719.58.5930.5979.6020.6604.65.6850.6914.7094.7139.7175.7221.7800.7846.8028.8098.8286.8335.8425.8472.9050.9097.9188.92.9459.9515.9675.97231.021.03151.03221.04071.07091.07651.081.09411.15141.15661.15721.16571.19591.20151.21391.21921.271.28171.26671.27681.32091.32651.331.34431.40141.40681.39171.40181.44591.45151.46391.4694.5084.5124.52.5294.5354.5382.5660.5702.58.5919.5979.6008.6604.6633.6850.65.7079.7126.7175.7207.7800.7832.8028.8077.8286.8322.8425.8458.9050.9083.9188.9242.9459.9499.9675.96091.021.03001.03221.03811.07091.07491.081.09251.15141.15501.15721.16311.19591.19991.21391.21761.271.28011.26671.27381.32091.32491.331.34271.40141.40521.39171.39881.44591.44991.46391.4677© 2001 Kennametal Inc.

17

Table of Pitch Diameters and Gage LimitsFor Bolts & ScrewsRing Thread GagesUnifiedNationalSeriesSeries2A3A23For Nuts & Tapped HolesPlug Thread GagesUnifiedNationalSeriesSeries2B3B23