DIN-267-6-紧固件-产品等级F

Fasteners紧固件ProductgradeF产品等级FDIN267Part6第6部分MechanischeVerbindungselemente;technischeLieferbedingungen,AusführungenundMaßgenauigkeitfürProduktklasseF产品等级F紧固件；发货技术条件；设计和尺寸精确度InkeepingwithcurrentpracticeinstandardspublishedbytheInternationalOrganizationforStandardization(ISO),acommahasbeenusedthroughoutasthedecimalmarker.为了与国际标准组织（ISO）的现行标准条例相符，使用逗号作十进制标记。Dimensionsinmm尺寸单位毫米1Scopeandfieldofapplication1适用范围和领域ThisstandardspecifiestolerancesforproductgradeFscrews,boltsandnutswiththreaddiametersfrom1to3mm.本标准详细说明了产品等级F的螺纹直径为1-3毫米的螺丝、螺钉和螺母的公差。Itisrecommendedthatthisstandardshouldalsobeusedfornon-standardizedfasteners.本标准同样适用于非标准化的紧固件。ProductgradeFgenerallyreferstothequalityofproductsforwhichstringentrequirementsaremadewithrespecttotolerances(e.g.inprecisionmechanics).产品等级F泛指根据产品质量所制定的严格公差要求（如在精确的技工中）。2Threaddiameters2螺纹直径Table1表1Threaddiameter螺纹直径Tolerance1)公差1)Internalthread内螺纹(nuts)(螺母）Externalthread外螺纹(bo1tsandscrews)(螺钉和螺丝）≥1≤1.45H4h1.4≤36H6g1)Platedthreadsshallnotinfringethemaximummateriallimitwithzerofundamentaldeviation.1）电镀螺纹不得违反零度基本偏差的最大材料限制。3Threadlengths3螺纹长度P=pitchofthreadP=螺距4Nominallengths4公称长度Continuedonpages2to5.详见第2页到第5页。5Drivinggeometry5驱动几何体5.1Widthsacrossflatsandwidthsacrosscorners5.1平面的宽度和角度的宽度Thespecifiedtolerancesforwidthsacrossflatsandtheminimumwidthsacrosscornersapplytofastenerswheretheheightofhexagons,m’,isequalto0,7mormore:本标准的平面宽度和最小角度宽度公差适用于高度不少于0.7米的六角螺母的紧固件。5.2Slots5.2插槽Table2表2Slotwidth,n插槽宽度,nNominalvalue公称值Tolerance公差0.3C11≥0.30.4C12≥0.4C136Headheights6螺头高度6.1Headdiameters6.1螺头直径Table3表3Threaddiameter螺纹直径ToleranceonD直径公差Slottedcheeseheadscrews开槽圆柱头螺钉Crossrecessedpanheadscrews十字槽盘头螺钉≥1≤1.4h12h131.4≤3h13h13Table4表4Threaddiameter螺纹直径ToleranceonD2)直径公差2)≥1≤1.4h101.42h12≥2≤3h132)Fortoleranceoncircularityofcountersunkcrossrecessedheadscrews,seefigure9intable6.2）十字槽沉头螺钉的圆度公差，参见表6中的图9.6.2Headheights6.2螺头高度Table5表5Headheight(nominalvalue)螺头高度（公称值）ToleranceonkSlottedcheeseheadscrews开槽圆柱头螺钉Crossrecessedpanheadscrews十字槽盘头螺钉≤0.8h11h120.81.2h12h13≥1.2h137Thicknessofnuts7.螺母厚度8Shankdiameters8柄径Theshankdiameterisapproximatelyequaltothepitchdiameter.柄径约等于中径。9Geometricaltolerances9形位公差Table6表6FigureNo图号Feature图像Tolerancebasedondimension尺寸公差1S2D3d4d5d6d7d8d9d10d11d12S13141516Explanatorynotes注释ThisstandardhasbeenpreparedbyNormenausschußFeinmechanikundOptik(PrecisionMechanicsandOpticsStandardsCommittee).本标准由精密技工和光学标准委员会制备。