DIN125-1

DIN325*PT*390■279444600027281■UDC621.882.42DEUTSCHE NORMMarch 1990Product grade A washers四with a hardness up to 250 HVdesigned for use with hexagon head bolts and nuts125Part 1Scheibon:Produktklasse A,bis Harte 250 HV,vorzugsweiseThis standard.fur Sechskantschrauben und-mutterntogether with DIN 125 Part 2,March 1990 edition,supersedes DIN 125,May 1968 edltion.In keeping with current pructice in standards published by the Intematlonal Organlzation for Standardization (ISO),a commahas been used throughout as the decimal marker.Dimensions in mm1 Scope and field of applicationThis standard specifies requirements for product grade A washers with a hardness up to 250 HV,designedfor use with bolts of property class 8.8 or less.The preferred application of these washers is in productgrades A and B hexugon head bolt/hexagon nut assemblles,wlth widths across flats as specified in ISO 272.Note.The washer hardness shall be seiected as a function of the assumed bearing pressure In the boltedassembly.2 DimenslonsType A,without chamferType B,with external chamferCommercial sizes:1,7mm to 37mm.Commercial sizes:5,3 mm to 166 mm.30°to459300ddd2Continued on pages 2 to 4Beuth Verteg GmbH,Berlin,has the exclualve right of sate for German Standards (DIN orman)1190DIN 125 Part 1 Engl.Price group 5Sales No.0105Copyright by the DIN Deutsches Institut Fur Normung E Ylon Mar041308322013