din-7516-vints参考标准资料

September 1995Cross recessed head thread cutting screwsNDimensions,requirements and testing75161CS21.060.10Supersedes November 1986 edition.Descriptors:Thread cutting screws,fasteners,screws.Gewinde-Schneidschrauben:Kreuzschlitzschrauben;MaBe,Anforderungen,PrufungIn keeping with current practice in standards published by the International Organization for Standardization (ISO),a commahas been used throughout as the decimal marker.ForewordThis standard has been prepared by the NormenausschuB Mechanische Verbindungselemente (Fasteners StandardsCommittee).AmendmentsThe following amendments have been made to the November 1986 editiona)The references to other DIN Standards have been updated.b)An 'E'has been added to each screw head type.c)The maximum core hardness has been reduced (to 370 HV).d)The standard has been editorially revised.Previous editionsD1N7516:1959-08.1971-08.1986-111 Scope and field of applicationin it by amendment or revision.For undated references,thelatest edition of the publication referred to applies.This standard specifies dimensions,requirements and testmethods for heat-treated cross recessed head threadDIN13-12cutting screws with an ISO metric thread as specified inISO metric screw threads:coarse and fine pitch threadsDIN 13-12,with cutting flutes extending from the point of thewith diameters from 1 to 300 mm:selected diametersscrew to its head,and designed to cut their mating threadand pitchesduring assembly.See the relevant DIN Standards for headDIN13-15styles.ISO 8992 for general requirements,and ISO 3269ISO metric screw threads;fundamental deviations andfor acceptance inspection.tolerances for screw threads of 1 mm diameter andThe specifications of this standard are intended to ensurelargerthat thread cutting screws are capable of performing theDIN1654-3above functions without fracturing or their own thread beingCold heading and cold extruding steels;technical deliv-deformed.To that end,requirements have been specifiedery conditions for case hardening steelsfor thread cutting capability.surface hardness,tensileDIN1654-4strength and torsional strength.Cold heading and cold extruding steels:technical delivery conditions for steels for quenching and temperingDIN4000-22 Normative referencesTabular layouts of article characteristics for bolts,This standard incorporates,by dated or undated reference.screws and nutsprovisions from other publications.These normative ref-DIN17210erences are cited at the appropriate places in the textCase hardening steel:technical delivery conditionsand the publications are listed hereafter.For dated referenc-D1N50133es,subsequent amendments to or revisions of any of theseVickers hardness testing of metallic materials;HV 0.2 topublications apply to this standard only when incorporatedHV100Continued on pages 2 to 5.329