美制粗螺纹对照表

序号规格型号最大最小公差最小最大公差 17/16"-2011.07910.8740.2069.72810.0330.305 21/2"-2012.66712.4610.20611.32811.6080.279 39/16"-1814.25214.0310.22112.75113.0810.33 43/4"-1619.01218.7730.23917.32317.6780.356 57/8"-1422.18421.9230.26220.26920.6760.406 61(1/16)-1226.94426.6550.2924.68925.1460.457 71(5/16)-1233.29433.0050.2931.03931.4960.457 81(5/8)-1241.2294

公称螺纹牙牙螺公差螺纹外径螺纹中径螺纹小径 直径规格数高距代号maxminmaxminmax 2a1.838961.742441.582421.531621.36652 3a1.85421.757681.597661.559561.38176 2a1.838961.750061.610361.56211.41986 3a1.85421.76531.62561.5901.4351 2a2.169162.065021.874521.821181.63068 3a2.18442.080261.889761.849121.64592 2a2.169162.072641.912621.861821.69672 3a2.18442.087881.927861.889761.71196

美制螺纹尺寸表单位：mm 外螺纹内螺纹 公称螺纹牙牙螺公差螺纹外径螺纹中径螺纹小径公差螺纹小径螺纹中径螺纹外径钻孔 直径规格数高距代号maxminmaxminmax代号minmaxminmaxmin直径 0.073（#1）1-64unc640.2360.3972a1.838961.742441.582421.531621.366522b1.424941.582421.597661.66371.85421.397 1.8543a1.85421.757681.597661.559561.381763b1.424941.582421.597661.645921.85421.397 1-72unf720.210.3532a1.83896

最小最大最小最大 8-320.15710.16310.13990.14280.1248 (0.164-32)3.99034.14273.55353.62713.1699 10-240.18180.1890.15860.16190.1379 (0.190-24)4.61774.80064.02844.11233.5027 12-240.20780.2150.18450.18790.1639 (0.216-24)5.27815.4614.68634.77274.1631 1/4-200.24080.24890.21270.21640.1876 (0.250-20)6.11636.32215.40265.49664.765 5/16-180.30260.31130.27120.27520.2

如果对你有帮助，请下载使用！ 1 美制螺纹标准对照表 美制外螺纹（2a）常用规格极限尺寸表（粗牙） 公称尺寸和每英寸牙 数 螺纹系 列代号 大径极限中径极限 小径max 螺胚直径 最小最大最小最大最小最大 8-32 unc 0.15710.16310.13990.14280.12483.583.61 (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 12-240.20780.21500.18450.18790.16394.724.75 (0.216-24)5.27815.46104.6863

mmmmmmmmmm螺距mmmm螺距mmmm螺距mmmm螺距mm 30.530.35 no.540no.5441/8"40 3.1750.6353.1750.57733.1750.635 40.740.5 no.832no.836 4.16560.79384.16560.7056 3/16"243/16"32 4.76251.05834.76250.7938 no.1024no.1032 4.82601.05834.82600.7938 50.850.5 6160.5 1/4"201/4"281/4"201/4"26 6.351.276.350.90716.351.276.350.9769 5/16"185/16"245/16"18

公制粗牙内螺纹 规格标准径 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

螺纹螺距对照表 来源：机电商情网日期：2011-12-10点击：303 紧固件螺纹直径与螺距对照表 螺纹规m2m3m4m5m6m8m10m12m14m16m18m20m22m24m27m30m33m36m39m42m45m48m52m56m60m64 粗牙螺距0.40.50.70.81.01.251.51.752.02.02.52.52.53.03.03.53.54.04.04.54.55.0 5.05.55.56.0 细牙螺距----1.01.0-1.251.5-1.251.51.51.52.0-1.52.02.02.02.02.03.03.03.03.03.04.0 4.04.04

最大最小最大最小 m1.0×0.250.750.7850.729no.1-64(1.854)1.551.5821.425 m1.1×0.250.850.8850.829no.2-56(2.184)1.801.8711.695 m1.2×0.250.950.9850.985no.3-48(2.515)2.102.1461.941 m1.4×0.31.101.1421.075no.4-40(2.845)2.302.3852.157 m1.6×0.351.251.3211.221no.5-40(3.175)2.602.6972.487 m1.7×0.351.351.4211.321no.6-32(3.505)2.802.8952.642 m1.8×0.351.451.5211.421no8-32(4

螺纹规格钻头直径 m1.6x0.351.25 m2x0.41.6 m2.5x0.452.05 m3x.052.5 m3.5x0.62.9 m4x0.73.3 m5x0.84.2 m6x15 m8x1.256.8 m8x17 m10x1.58.5 m10x1.258.8 m12x1.7510.2 m12x1.5010.5 m12x1.2510.8 m14x212 m14x1.512.5 m16x214 m16x1.514.5 m18x2.515.5 m18x1.516.5 m20x2.517.5 m20x1.518.5 m22x2.519.5 m22x1.520.5 m24x321 m24x222 m27x324 m27x225 螺纹攻丝底孔对照表

v1.0可编辑可修改 1 类别标准名称标准号 与国际标准的关 系 普通螺 纹 普通螺纹基本牙型gb/t192—1981与iso68等效 普通螺纹直径与螺距系列gb/t193—1981与iso261等效 普通螺纹基本尺寸gb/t196—1981与iso724等效 普通螺纹公差与配合gb/t197—1981与iso965/1等效 普通螺纹偏差表gb/t2516—1981与iso965/3等效 商品紧固件的普通螺纹选用系列jb/t7912—1999与iso262等效 商品紧固件的中等精度普通螺纹极限尺 寸 gb/t9145—1988与iso965/2等效 光学螺 纹 光学仪器特种细牙螺纹zbn30006—1988 -光学仪器用目镜螺纹jb/t8204—1995 光学仪器用短牙螺纹jb/

公称直径 (d) 螺距 (p) 公称直径 (d) 螺距 (p) 0.84.1343 0.54.4592 14.9171.5 0.755.1881 1.256.6473.5 16.9173 0.757.1882 1.58.3761.5 1.258.6471 18.9174 0.759.1883 1.7510.1062 1.510.3761.5 1.2510.6474.5 110.9174 211.8353 1.512.3762 1.2512.6471.5 112.9175 213.8354 1.514.3763 114.9172 2.517.2941.5 217.8355.5 1.518.3764 118.9173 320.7522 221.8351.5 1.522.376 m2

. 精选文档 公制螺纹 基本直径内螺纹公差等级外螺纹公差 大 径 中径小径6h7h6g 中径公差小径公差中径公0, 差 小径公差中径公差小径公差 m10*1109.358.9170,+0.1500,+0.2360,+0.1900,+0.300-0.026,-0.138-0.026,0.206 m12*11211.3510.9170,+0.1600,+0.2360,+0.2000,+0.300-0.026,-0.144-0.026,0.206 m14*11413.35122.9170,+0.1600,+0.2360,+0.2000,+0.300-0.026,-0.144-0.026,0.206 m12*1.251211.18810.6470,+0.1800,+0.2650,+0.2240,+0.335

螺纹底孔直径 公制粗牙螺纹 螺纹代号 钻头直径 hss硬质合金 m2×0.41.61.65 m3×0.52.52.55 m4×0.73.33.4 m5×0.84.24.3 m6×1.05.05.1 m8×1.256.86.9 m10×1.58.58.7 m12×1.7510.310.5 m14×2.012.012.2 m16×2.014.014.2 m18×2.515.515.7 m20×2.517.517.7 m24×3.021.0⋯⋯ m30×3.526.5⋯⋯ m36×4.032.0⋯⋯ m42×4.537.5⋯⋯ m45×4.540.5⋯⋯ m48×5.043.0⋯⋯ 细牙螺纹 螺纹代号 钻头直径 铝硬质合金 m2×0.251.751.75 m

螺纹代号对照表 螺纹名称中国iso日本美国英国法国德国前苏联 60°普通 螺纹 mps 60°圆锥 管螺纹 npt z(旧)npt 55°圆柱 管螺纹grp g pf bsp bsppg r(内螺纹) k(外螺纹) g tpyь 55°圆锥 管螺纹 zg r(外螺纹) r(外螺纹) rc(内螺纹) pt r bspt r(外螺纹) rc(内螺纹) g(外螺纹) r(外螺纹)r (外螺纹) 55°梯形 螺纹 tr(新) t(旧)trtrtr 60°米制 锥螺纹zm 3°30°米制 锯齿螺纹b 国外螺纹的代号和标注识别 1.英制螺纹(螺纹牙型角55度) bsw----英国标准惠氏螺纹(粗牙)bsf----英国标准惠氏螺纹(细牙

螺纹简介： 1.1螺纹的起源 一般认为，阿基米德（公元前287-212年）是首先将螺纹用于工业目的，即将低处的水移到高处的一种工具。 1659年法国人贝兹逊发明螺纹切割机；其后，经过英国的威阿特、亨利?莫斯列，到其子弟约瑟夫?惠氏于1841年才 统一原本混乱的螺纹，促进螺纹制品的全球普及；因此，惠氏螺纹也随英国工业的发达而广泛传播世界。 美制螺纹依据塞勒氏螺纹（seller'sthread）而问世于1924年；二次世界大战中，美国、英国、加拿大三国协 定发展成统一制螺纹unifiedthread。随着国际交流的频繁，1947年成立的iso国际标准化组织（internationalstandard organization)成为推动国际标准化的重要力量。 1.2螺纹概述 按用途分类，可分为紧固螺纹、密封螺纹、传动螺纹、管螺纹、专用螺纹。 1.3螺纹的分

管螺纹与普通螺纹攻牙孔径对照表

单位：mm 公称直径螺距底径公称直径螺距底径 m30.5(标准)2.459m525.0(标准)46.578 m40.7(标准)3.2423.0(细牙)48.752 m50.8(标准)4.134m565.5(标准)50.046 m61.0(标准)4.9173.0(细牙)52.752 m81.25(标准)6.647m646.0(标准)54.046 1.0(细牙)6.9173.0(细牙)56.752 m101.5(标准)8.376m726(细牙)65.505 1.0(细牙)8.917m806(细牙)73.505 m121.75(标准)10.106m906(细牙)83.505 1.5(细牙)

. . 标准螺纹螺距对照表 螺纹粗牙细牙 m10.250.2 m1.10.250.2 m1.60.350.2 m20.40.25 m2.50.450.35 m30.50.35 m40.70.5 m50.80.5 m610.75,(0.5) m81.251,0.75,(0.5) m101.51.25,1,0.75,(0.5) m121.751.5,1.25,1,(0.75),(0.5) (m14)21.5,1.25,1,(0.75),(0.5) m1621.5,1.25,1,(0.75),(0.5) (m18)2.52,1.5,1.25,1,(0.75

紧固件螺纹直径与螺距对照表 螺纹规格m3m4m5m6m8m10m12m14m16m18m20m22m24 粗牙螺距0.50.70.81.01.251.51.752.02.02.52.52.53.0 细牙螺距----1.01.0-1.251.5-1.251.51.51.52.0-1.52.02.0 螺纹规格m27m30m33m36m39m42m45m48m52m56m60m64 粗牙螺距3.03.53.54.04.04.54.55.05.05.55.56.0 细牙螺距2.02.02.03.03.03.03.03.04.04.04.04.0 螺栓、螺钉、螺柱公称长度表 6810121620253035404550(5

最大最小最大最小g4-g6g7-g8g9 m1.0*0.250.750.7850.729m12*1.011.0011.15310.917m1.0*0.250.860.88 m1.1*0.250.850.8850.829m12*0.511.5011.52011.400m1.1*0.250.960.98最大 m1.2*0.250.950.9850.929m14*1.512.5012.67612.376m1.2*0.251.061.08g1/167.726.84 m1.4*0.31.101.1421.075m14*1.013.0013.15312.917m1.4*0.31.241.25g(pf)1/89.738.85 m1.6*0.351.251.3211.221m15*1.51

基本尺寸大径螺距 每英寸牙 数中径小径牙型高度圆弧尺寸底孔尺寸 外径 英寸mmmmtpimm外螺纹h1rmmmm d=dpd2=d2d3公称内径英寸 r1/161/16＂7.7230.907287.1426.5610.5810.1256.4dn151/24分21.3 r1/81/8＂9.7280.907289.1478.5660.5810.1258.4dn203/426.9 r1/41/4＂13.1571.3371912.30111.4450.8560.18411.2dn25133.7 r3/83/8＂16.6621.3371915.80614.950.8560.18414.75dn321.2542.4 r1/21/2＂20.955