din-7985-vint参考标准资料

DIN 7985.BNHTbI c nonyunnNHApnyeckon ronoBokon n KpecToo6pa3HbIM wnnueMUDC621.882.215.3.091.2August 1990Cross recessed raised cheese head screws瓜7985Linsenschrauben mit KreuzschiitzSuperaades July 1986 edition.in keeping with current practice in standards published by the international Organization for Standardization (ISO),acommehas been used throughout as the decimal marker.This standard should be used together with ISO 7045.For details,see Explanatory notes.lt is intended to withdraw the presentstandard by 31 July 1995 at the latest.Dimensions in mm1Scope and fleld of applicationThis standard specifies requirements for M1,6 to M10 cross recessed raised cheese head screws assigned to product gradeA.See DIN 962 (or the standards referred to therein)for special features of fasteners.It,in special cases,screws are to comply with specifications other than those given in this standard (e.g.regarding propertyclass or material),these shall be selected in accordance with the relevant standards.2 DimensionsRalsed cheese head screwRalsed cheese head screwthreaded up to the headwith unthreaded portlon of shank(specified in table 1 above dashed line)(specified in table 1 below dashed line))Screws to be provided with DIN 78-Ko end.Other dimensions and details as at leftThe shank diameter may be equal to the thread diameter(normal shank)or approximately aqualto the pitch diameter(reducedshank).at the manufacturer's discretion.Cross recess type HCross recess type Z1)Ifraised cheese head screws with lengths given below the dashed line are to be supplied with theirshank threaded up to thehead,letter A shall be included in the designation,in accordance with DIN 962.Continued on pages 2 to 5457