公英制管螺纹对照表.docVIP

公英制管螺纹对照表 求公英制管螺纹对照表！55度和60度牙型角的区别55度是英制。 美国有美制和公制。 美制和公制都是60度。 好多地方都有对照表。 UNF谁知道是什么意思？UNF统一制细牙螺纹（代替NF）Unified finepitch thread(Instead ofNF)管螺纹是用英寸表示，11英寸=25.4mm,你可以直接把英寸换算成公制的毫米管螺纹与标准螺纹换算标准尺寸代号每英寸牙数螺距螺纹直径（in)n p大径D、d小径D 1、d11/16280.9077.7236.5611/8280.9079.7288.5661/4191.33713.15711.4453/8191.33716.66214.951/2141.81420.95518.6315/8141.81422.91120.5873/4141.81426.44124.1177/8141.81430.xx7.8771112.30933.24930.2911-1/8112.30937.89734.9391-1/4112.30941.9138.9521-1/2112.30947.80344.8451-3/4112.30953.74650.7882112.30959.61456.6562-1/4112.30965.7162.7522-1/2112.30975.18472.2262-3/4112.30981.53478.5783112.30987.88484.9263-1/2112.309100.3397.3724112.309113.03110.0725112.309138.43135.4726112.309163.83160.872注1in=25.4mm 1、用螺纹密封的管螺纹其标记及各种螺纹的特征代号规定如下Rc圆锥内螺纹Rp与圆锥外螺纹配合的圆柱内螺纹R圆锥外螺纹标准规定将螺纹尺寸代号写在特征代号之后，若螺纹为械旋应再加写左旋代号LH，具体示例如下圆锥内螺纹Rc1/2左旋圆柱内螺纹Rp1/2LH圆柱内螺纹与圆锥外螺纹的配合Rp2/R 22、非螺纹密封的管螺纹标记如下A级外螺纹G1/2A内螺纹G1/2左旋B级外螺纹G1/2BLH螺纹副G1/2G1/2A中华标准件网首页|添加到收藏夹供货|需求|现货|标准查询|汇聚标准件商友-交流分享互助标题技术交流请输入关键字搜索首页贸易交流技术交流商友交流专家文章休闲茶楼共享下载论坛事务您当前的位置标准件论坛技术交流英制螺纹对照表首页上页112下页末页上一主题|下一主题英制螺纹对照表发表于:xx-7-159:49:30w311614身份一般用户类型个人用户注册时间xx-2-26经验值8315发帖总数2189回复总数1065英美制特制螺纹对照表(附图)英制美制迫牙丝攻钻孔径对照表图美制螺纹和英制管螺纹对照表英制美制联合螺纹和英美美联细螺纹对照表英制螺纹规格和公制螺纹规格对照表6g外螺纹大径6H内螺纹小径序号规格型号最大最小公差最大最小公差1M10*19.9749.7940.1809.1578.9170.2402M12*1.511.96811.7320.23610.67610.3760.3003M14*1.513.96813.7320.23612.67612.3760.3004M16*1.515.96815.7320.23614.67614.3760.3005M18*1.517.96817.7320.23616.67616.3760.3006M20*1.519.96819.7320.23618.67618.3760.3007M22*1.521.96821.7320.23620.67620.3760.3008M24*1.523.96823.7320.23622.67622.3760.3009M26*1.525.96825.7320.23624.67624.3760.30010M27*1.526.96826.7320.23625.67625.3760.30011M30*1.529.96829.7320.23628.67628.3760.30012M27*226.96226.6820.28025.21024.8350.37513M30*229.96229.6820.28028.21027.8350.37514M33*232.96232.6820.28031.21030.8350.37515M36*235.96235.6820.28034.21033.8350.37516M42*241.96241.6820.28040.21039.8350.3751G1/8-289.7289.5140.2148.8488.5660.2822G1/4-1913.15712.9070.25011.89011.4450.4453G3/8-1916.66216.4120.25015.39514.9500.4454G1/2-1420.95520.6710.28419.17218.6310.5415G3/4-1426.44126.1570.28424.65824.1170.5416G1-1133.24932.8890.36030.93130.2910.6407G11/4-1141.91041.5500.36039.59238.9520.6408G11/2-1147.80347.4430.36045.48544.8450.640英制螺纹的识别英寸制统一螺纹，在英寸制国家广泛采用，该类螺纹分三个系列粗牙系列UNC，细牙系列UNF，特细牙系列UNFF，外加一个定螺距系列UN。 标注方法螺纹直径每英寸牙数系列代号精度等级示例粗牙系列3/816UNC2A细牙系列3/824UNF2A特细牙系列3/832UNFF2A定螺距系列3/820UN2A第一位数字3/8表示螺纹外径，单位为英寸，转换为米制单位mm要乘以25.4，即3/825.4=9.525mm；第 二、三位数字 16、 24、 32、20为每英寸牙数(在25.4mm长度上的牙数)；第三位以后的文字代号UNC、UNF、UNFF、UN为系列代号，最后两位2A为精度等级。 英制管螺纹对照表如下公称直径螺距底孔直径底孔深度公称直径螺距底孔直径底孔深度G1/41.33711.420 (19)ZG1/80.9078.115 (28)G3/81.33714.924 (19)ZG1/41.33710.820 (19)G3/41.81424.131 (14)ZG1/21.81417.929 (14)G12.30930.337 (11)ZG3/41.81423.231 (14)G1-1/42.30938.940 (11)G12.30929.237 (11)G1-1/22.30944.842 (11)1-1/42.30937.740 (11)G22.30956.644 (11)ZG1-1/22.30943.542 (11)ZG22.30955.044 (11)注1in=25.4mm 1、用螺纹密封的管螺纹其标记及各种螺纹的特征代号规定如下Rc圆锥内螺纹Rp与圆锥外螺纹配合的圆柱内螺纹R圆锥外螺纹标准规定将螺纹尺寸代号写在特征代号之后，若螺纹为械旋应再加写左旋代号LH，具体示例如下圆锥内螺纹Rc1/2左旋圆柱内螺纹Rp1/2LH圆柱内螺纹与圆锥外螺纹的配合Rp2/R 22、非螺纹密封的管螺纹标记如下A级外螺纹G1/2A内螺纹G1/2左旋B级外螺纹G1/2BLH螺纹副G1/2G1/2A英制管螺纹美制管螺纹对照表英制管螺纹英制管螺纹美制管螺纹规格标准径钻孔径规格标准径有交牙部之长度(最小)中之毋螺牙内径标准长度(最小)中之毋螺牙内径规格钻孔径最大最小使用纹刀时不用纹刀时NPT NPS使用绞刀时不用绞刀时PS1/16-286.56.6326.49PT1/16-286.16.26.2446.3841/16-276.16.256.35PS1/8-288.58.6378.495PT1/8-288.18.28.2498.388xx-8-278.338.438.74PS1/4-1911.411.54911.341PT1/4-1910.71110.96211.174xx-4-1810.7211.1311.13PS3/8-191515.05414.846PT3/8-1914.214.514.44814.658xx-8-1814.2714.2714.68PS1/2-1418.518.77318.489PT1/2-1417.61817.97918.263xx-2-1417.4817.8618.26PS3/4-142424.25923.975PT3/4-142323.523.37823.663xx-4-1422.6323.0123.42PS1-1130.230.47130.111PT1-112929.529.45929.8221-11-1/228.5828.9829.36PS1-1/4-1138.839.13238.772PT1-1/4-1137.53837.97638.3391-1/4-11-1/237.3137.6938.1PS1-1/2-1144.845.02544.665PT1-1/2-1143.44443.86944.2321-1/2-11-1/243.6644.0444.45PS2-1156.556.83656.476PT2-1154.955.555.41255.844国内外实践表明，螺纹紧固件的紧固，并不是像有些人想象得那样，不就是螺丝螺帽吗？用扳手拧紧就行了吧。 螺纹紧固的方式方法很多，但是最简单的、最常用的还是使用手工扳拧工具进行拧紧，这种紧固手段虽然容易操作，但是，对于高强度或者重要的连接紧固中是绝对不行的，也是绝对不允许的，这一点恐怕极易被人忽视。 因为使用手工扳拧工具进行拧紧的方法是无法控制轴向预紧力的，也是会影响螺纹连接体的可靠性，甚至会直接影响整机或工程的性能和质量。 因此，在螺纹紧固件的连接设计中应该明确提出确切的初始预紧力的指标要求，在装配工艺或施工规范中，根据设计要求，应制订切实可行的方案，采用合适的拧紧方法，准确控制，来确保设计目标的实施，是非常必要的。 在这方面钢结构工程多年来积累了许多经验。 汽车行业在技术引进中，通过吸收消化过程，也广泛地采用了国际先进技术，在这方面做了很多基础研究工作。 目前，在各行业中不论是在螺纹紧固件连接紧固的连接理论、检测试验、还是现场装配使用研究工作都引起了足够的重视。 所以，标准中对螺纹紧固的基本要求虽然只有一段话，但意义深刻。 相关链接英制螺纹的表示方法英制螺纹标注方法最后修改于xx-5-239:37:56签名档标准件紧固件螺丝螺栓轴承网120身份一般用户类型个人用户注册时间xx-9-1经验值828发帖总数63回复总数561第1楼回复发表于xx-7-1516:17:13引用回复英制螺纹是螺纹标准的一种，按外形分圆柱、圆锥两种；按牙型角分55、60两种。 螺纹中的1/ 4、1/ 2、1/8标记是指螺纹尺寸的直径，单位是英寸。 一寸等于8分，1/4寸就是2分，如此类推。 签名档sqr4身份一般用户类型个人用户注册时间xx-2-26经验值7041发帖总数37回复总数5159第2楼回复发表于xx-7-1517:34:42引用回复米制螺纹与英制螺纹对照表签名档sqr4身份一般用户类型个人用户注册时间xx-2-26经验值7041发帖总数37回复总数5159第3楼回复发表于xx-7-1611:13:35引用回复最近英制与公制对照表可有分享签名档110身份一般用户类型个人用户注册时间xx-8-27经验值909发帖总数67回复总数614第4楼回复发表于xx-7-1615:55:11引用回复公制螺纹是60度等边牙型，英制螺纹是等腰55度牙型，美制螺纹60度。 签名档chubo1990cool身份一般用户类型个人用户注册时间xx-8-31经验值1025发帖总数62回复总数728第5楼回复发表于xx-7-1916:14:50引用回复英制螺纹对照表=A型美制螺纹（UNF）常用规格=外螺纹内螺纹-49/16-19牙14.2813.08-611/16-1617.4616.1-813/16-1620.6419.28-101-1425.4023.57-121(3/16)-1230.0028.32-161(7/16)-1236.5134.67-201(11/16)-1242.8641.02=C型JIC37度美制UNF螺纹常用规格=-47/16”-xx.1110.03-51/2”-xx.7011.32-69/16”-1814.2813.08-83/4”-1619.0017.68-107/8”-1422.2220.68-121(1/16)-1226.9825.15-161(5/16)-1233.3331.5-201(5/8)-1241.2839.44-241(7/8)-1247.6245.8-322(1/2)-1263.561.67=英制圆柱管螺纹（BSPP）常用规格=-41/4”-1913.15711.55-63/8”-1916.66214.95-81/2”-1420.95518.63-123/4”-1426.44124.11-161”-1133.24930.29-201(1/4)-1141.9138.95=英制圆锥管螺纹（BSPT）常用规格=基面大径基准距离-1/4”-1913.15763/8”-1916.6626.41/2”-1420.9558.23/4”-1426.4419.51”-1133.24910.41(1/4)-1141.9112.7=美制圆锥管螺纹=1/8”-2710.2441/4”-1813.6043/8”-1817.044.321/2”-1421.224.483/4”-1426.574.751”-11(1/2)”33.224.61(1/4)”-11.541.964.83签名档120身份一般用户类型个人用户注册时间xx-9-1经验值828发帖总数63回复总数561第6楼回复发表于xx-7-2217:23:33引用回复英制螺纹螺紋尺寸下孔徑嵌合率A列(硬材質)B列(軟材質)A列直徑B列直徑內螺紋最小徑內螺紋最大徑W1/82.62.570.783.070.088.33/163.73.678.485.870.088.31/45.15.076.983.070.588.35/166.66.574.099.570.188.43/88.07.975.080.069.588.27/169.49.373.780.069.088.81/210.710.573.881.269.088.29/1612.312.073.484.469.088.25/813.713.573.580.369.688.53/416.716.572.378.469.688.37/819.519.375.480.970.188.4122.422.073.883.671.088.211/825.024.876.981.372.088.411/428.328.074.380.772.088.413/830.530.381.685.373.888.611/233.833.579.384.873.888.615/836.035.781.185.774.888.313/439.239.080.783.874.888.317/841.841.580.684.774.788.4245.044.780.284.474.788.4签名档chubo1990cool身份一般用户类型个人用户注册时间xx-8-31经验值1025发帖总数62回复总数728第7楼回复发表于xx-7-2415:31:31引用回复哪里有英制螺纹对照表签名档512身份一般用户类型个人用户注册时间xx-9-1经验值1341发帖总数176回复总数687第8楼回复发表于xx-7-2615:35:35引用回复螺丝英制螺纹对照表nominal sizebase screwdiameter(mm)#01.52#11.85#22.18#32.51#42.84#53.18#63.51#73.84#84.17#104.83#125.481/46.35uns是英制普通粗牙螺纹;unf是英制航空工业用螺纹1/4-20:螺纹直径1/4,1(25.4mm)有20个牙签名档110身份一般用户类型个人用户注册时间xx-8-27经验值909发帖总数67回复总数614第9楼回复发表于xx-7-2715:21:06引用回复公制螺纹和英制螺纹对照表签名档w311614身份一般用户类型个人用户注册时间xx-2-26经验值8315发帖总数2189回复总数1065第10楼回复发表于xx-7-289:20:15引用回复最新公英制螺纹对照表公制粗牙螺纹公制粗牙螺纹公制粗牙螺纹称呼尺寸下孔径2级螺纹内径称呼尺寸下孔径2级螺纹内径称呼尺寸下孔径2级螺纹内径上限下限上限下限上限下限M1*0.250.750.7850.729M1*0.20.80.8210.783M22*1.520.520.67620.376M1.1*0.250.850.8850.829M1.1*0.20.90.9210.883M22*12121.15320.917M1.2*0.250.950.9850.929M1.2*0.211.0210.983M24*22222.2121.835M1.4*0.31.11.1421.075M1.4*0.21.21.2211.183M24*1.522.522.67622.376M1.6*0.351.251.3211.221M1.6*0.21.41.4211.383M24*12323.15322.917M1.7*0.351.351.4211.321M1.8*0.21.61.6211.583M25*22323.2122.835M1.8*0.451.451.5211.421M2*0.251.751.7851.729M25*1.523.523.67623.376M2*0.41.61.6791.567M2.5*0.352.22.2212.121M25*12424.15323.917M2.2*0.41.751.8381.712M3*0.52.72.7212.621M26*1.524.524.67624.316M2.3*0.41.91.9791.867M3.5*0.352.23.2213.121M27*22525.2124.835M2.5*0.452.12.1382.013M4*0.53.53.5993.459M27*1.525.525.67625.376M2.6*0.452.22.2382.113M4.5*0.544.0993.959M27*12626.15325.917M3*0.52.52.5992.459M5*0.54.54.5994.459M28*22626.2125.835M3*0.62.42.442.228M5.5*0.555.0994.959M28*1.526.526.67626.376M3.5*0.62.93.012.85M6*0.755.35.3785.188M28*12727.15326.917M4*0.73.33.4223.242M7*0.756.36.3786.188M30*32727.25226.752M4*0.753.253.3263.106M8*177.1536.917M30*22828.2127.835M4.5*0.753.283.8783.668M8*0.757.37.3787.188M30*1.528.528.67628.376M5*0.84.24.3344.134M9*188.1537.917M30*12929.15328.917M5*0.94.14.173.93M9*0.758.38.3788.188M32*23030.2129.835M6*155.1534.917M10*1.258.88.9128.647M32*1.530.530.67630.376M7*166.1535.917M10*199.1538.917M33*33030.25229.752M8*1.256.86.9126.647M10*0.759.39.3789.188M33*23131.2130.835M9*1.257.87.9127.647M10*0.59.59.529.4M33*1.531.531.67631.376M10*1.58.58.6768.376M11*11010.1539.917M35*1.533.533.67633.376M11*1.59.59.6769.376M11*0.7510.310.37810.188M36*33333.25232.752M12*1.7510.310.44110.106M12*1.510.510.67610.376M36*23434.2133.835M14*21212.2111.836M12*1.2510.810.91210.647M36*1.534.534.67634.376M16*21414.2113.835M12*11111.15310.917M38*1.536.536.67636.376M18*2.515.515.74415.294M14*1.512.512.67612.376M39*33636.25235.752M20*2.517.517.74417.294M14*11313.15312.917M39*23737.2136.835M22*2.519.519.74419.294M15*1.513.513.67613.376M39*1.537.537.67637.376M24*32121.25220.752M15*11414.15313.917M40*33737.25236.752M27*32424.25223.752M16*1.514.514.67614.376M30*3.526.526.77126.211M16*11515.15314.917M33*3.529.529.77129.211M17*1.515.515.67615.376M36*43232.2731.67M17*11616.15315.917M39*43535.2734.67M18*21616.2115.835M42*4.537.537.79937.129M18*0.2516.516.67516.376M45*4.540.540.79940.129M18*11717.15316.917M48*54343.29742.587M20*21818.2117.835M20*1.518.518.67618.375M20*11919.15318.917M22*22020.2119.835签名档标准件紧固件螺丝螺栓轴承网chubo1990cool身份一般用户类型个人用户注册时间xx-8-31经验值1025发帖总数62回复总数728第11楼回复发表于xx-7-2817:42:08引用回复英制螺纹对照表发展概述签名档w311614身份一般用户类型个人用户注册时间xx-2-26经验值8315发帖总数2189回复总数1065第12楼回复发表于xx-8-216:45:09引用回复英制对照表、紧固件常用尺寸规格规格格英寸毫米规格英寸毫米No.00000.02100.53341/40.25006.3500No.0000.03400.86365/160.31257.9375No.000.04701.19383/80.37509.5250No.00.06001.52407/160.437511.1125No.10.07301.85421/20.500012.7000No.20.08602.18449/160.562514.2875No.30.09902.51465/80.625015.8750No.40.11202.84483/40.750019.0500No.50.12503.17507/80.87522.2250No.60.13803.505211.000025.4000No.70.15103.83541-1/81.125028.5750No.80.16404.15661-1/41.250031.7500No.90.17704.49581-3/81.375034.9250No.100.19004.82601-1/21.500038.1000No.120.21605.48641-5/81.625041.2750No.140.24206.14681-3/41.750044.4500No.160.26806.80721-7/81.875047.6250No.180.29407.467622.000050.8000No.200.3xx.1280No.240.37209.4488签名档标准件紧固件螺丝螺栓轴承网w311614身份一般用户类型个人用户注册时间xx-2-26经验值8315发帖总数2189回复总数1065第13楼回复发表于xx-8-515:34:37引用回复米制螺纹与英制螺纹对照表签名档标准件紧固件螺丝螺栓轴承网chubo1990cool身份一般用户类型个人用户注册时间xx-8-31经验值1025发帖总数62回复总数728第14楼回复发表于xx-8-515:39:40引用回复英制螺纹是世界上最早通用的标准签名档120身份一般用户类型个人用户注册时间xx-9-1经验值828发帖总数63回复总数561第15楼回复发表于xx-8-615:49:29引用回复英制螺纹对照表Nominal sizeBase screwdiameter(mm)#01.52#11.85#22.18#32.51#42.84#53.18#63.51#73.84#84.17#104.83#125.481/46.35UNS是英制普通粗牙螺纹;UNF是英制航空工业用螺纹1/4-20:螺纹直径1/4,1(25.4mm)有20个牙美制规格英寸毫米0-800.061.5241-640.0731.85422-560.0862.18443-480.0992.51464-400.1122.84485-400.1253.1756-320.1383.50528-320.1644.165610-240.194.82612-240.2165.48643/16-240.18754.76251/4-200.256.355/16-180.31257.93753/8-160.3759.5257/16-140.437511.11251/2-130.512.79/16-120.562514.28755/8-110.62515.87511/16-120.687517.4625PDF文件以FinePrint pdfFactoryPro试用版创建.pdffactory.3/4-100.7519.0513/16-100.812520.63757/8-90.87522.22515/16-90.937523.81251-8125.41.1/16-121.062526.98751.1/8-71.12528.5751.1/4-71.2531.751.3/8-