【英文标准名称】:UnifiedscrewthreadsPart1:Screwthreadswithdiameters1/4inandlarger–Requirements
【原文标准名称】:统一标准螺纹.第1部分:直径1/4in及更大的螺纹.要求
【标准号】:BS1580-1-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-12-31
【实施或试行日期】:2007-12-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:飞行器部件;螺栓;名称与符号;直径;尺寸公差;尺寸;配合;金属涂层;螺母;螺纹形状;螺距;螺纹;统一螺纹
【英文主题词】:Aircraftcomponents;Bolts;Designations;Diameter;Dimensionaltolerances;Dimensions;Fits;Metalcoatings;Nuts;Threadforms;Threadpitch;Threads;Unifiedscrewthreads
【摘要】:ThispartofBS1580specifieslimitsofsizes,andtolerances,forsingle-start,clearance-fitunifiedscrewthreads,ininchunits,withnominaldiametersinandabove,havingtheISObasicprofileasspecifiedinBSISO68-2:1998.ThepartofBS1580specifiesthefollowingunifiedthreadseriesasfollows:a)standardvariablepitchseries:?acoarsethreadseries(UNC)from1/4into4innominaldiameter;?afinethreadseries(UNF)from1/4into3/2innominaldiameter;?anextrafinethreadseries(UNEF)from1/4into27/16innominaldiameter;b)standardconstantpitchseries:?a4-threadsperinchseries(4UN)from21/8into6innominaldiameter;?a6-threadsperinchseries(6UN)from23/16into6innominaldiameter;?an8-threadsperinchseries(8UN)from17/16into6innominaldiameter;?a12-threadsperinchseries(12UN)from5/8into6innominaldiameter;?a16-threadsperinchseries(16UN)from7/16into6innominaldiameter;?a20-threadsperinchseries(20UN)from5/16into3innominaldiameter;?a28-threadsperinchseries(28UN)from5/16into3/2innominaldiameter;?a32-threadsperinchseries(32UN)from7/16into1innominaldiameter;c)aspecialthreadseries(UNS)withdiameter/pitchcombinationsotherthanthosespecifiedforthestandardseries.
【中国标准分类号】:J04
【国际标准分类号】:21_040_20
【页数】:118P.;A4
【正文语种】:英语