美制粗牙螺纹UNC规格表,美制unc螺纹底孔对照表

美制粗牙螺纹UNC规格表,美制unc螺纹底孔对照表

1.美国粗螺纹2.英国管螺纹pitchP=1inch/numberofteeth,middlewarpE=D-0.75HH=0.866025Ph=0.635Hk=D-2h=D-1.25H3.Huisystemthread4. 5.牙套螺纹攻丝山数螺距换算表双面级，丝锥分为G,G-D)2.美式螺纹(螺纹剖面60度)UNC---统一粗牙(代替NC)UNF---

美国内螺纹(2B)通用规格极限尺寸表(粗螺纹)NominalsizeandnumberofthreadsperinchThreadseriescodeMinordiameterlimitMediumdiameterlimitLargediameterminBottomholediameterminmaxminmaxminmax8-32UNC0.13000.13900UNAmericansystemThreadSizeUnit=mmExternalThreadSizeInternalThreadSizeNominalThreadToothScrewTolerance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编号

美国统一螺纹表UNC-UNF.pdf,美国标准系列统一UNR外螺纹设计公制比较表(mm)MiddleWarpToleranceesNominalBasicLargeThreadNumberSeriesBasicMiddleWarpInternalThreadBasicSmallD,dDiameterDCommonspecificationsanddimensionsofAmericanexternalthreadAmericanexternalthread(2A)commonspecificationlimitsizetable(coarsethread)NominalsizeandnumberofthreadsperinchThreadseriescodeLargediameterlimitMediumdiameterlimitMinordiametermaxSpiraldiameterminimummaximumminimummaximumminimummaximumminimumminimum最大

≥△≤ 美国螺纹标准（粗细螺纹）美国外螺纹（2A）通用规格极限尺寸表（粗螺纹）UNC公称尺寸/大径极限中径极限小径最大螺纹直径每英寸最小最大最小最大最小最大最小最大8-32UNC0.1571美国统一螺纹表uncunfesbasiclargelongitudeandsmalldiameterd3pitchP2A1and2A0.060080UNF0.05190.04650.04471.52401.18031.13450.31750.0017620.0005290.073064UNC0.06290.05610.0538