【英文标准名称】:Plainwashers-Normalseries-ProductgradeA
【原文标准名称】:平垫圈标准系列产品等级A级
【标准号】:ISO7089-2000
【标准状态】:现行
【国别】:国际
【发布日期】:2000-06
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC2
【标准类型】:()
【标准水平】:()
【中文主题词】:紧固件;交货条件;特性;尺寸;公差(测量);名称与符号;垫圈;浅;可拆零件;产品等级
【英文主题词】:Deliveryconditions;Designations;Dimensions;Fasteners;Productgrades;Properties;Separatingparts;Shallow;Tolerances(measurement);Washers
【摘要】:ThisInternationalStandardspecifiesthecharacteristicsofnormal-series,product-grade-Aplainwashersinthe200HVand300HVhardnessclassesandofnominalsizes(nominalthreaddiameters)rangingfrom1,6mmto64mminclusive.Washersofhardnessclass200HVaresuitablefor—hexagonboltsandscrewsofproductgradesAandBinpropertyclassesuptoandincluding8.8;—hexagonnutsofproductgradesAandBinpropertyclassesuptoandincluding8;—hexagonbolts,screwsandnutsofstainlesssteelofsimilarchemicalcomposition;—case-hardenedthreadrollingscrews.Washersofhardnessclass300HVaresuitablefor—hexagonboltsandscrewsofproductgradesAandBinpropertyclassesuptoandincluding10.9;—hexagonnutsofproductgradesAandBinpropertyclassesuptoandincluding10.IfdimensionsotherthanthoselistedinthisInternationalStandardarerequired,theyshouldbeselectedfromthosegiveninISO887.Whensoftmaterialpiecesareclamped,orlargeclearanceholesintheworkpieceareused,theusershouldcheckthetechnicalsuitabilityofthistypeofwasher.
【中国标准分类号】:J13
【国际标准分类号】:21_060_30
【页数】:5P;A4
【正文语种】:英语