din-603-bolts参考标准资料

UDC621.882.215.091.4October 1981Mushroom head square neck bolts西603Flachrundschrauben mit VierkantansatzSupersedes 11.70 editionAs it is current practice in standards published by the International Organization for Standardization (ISO),thecomma has been used throughout as a decimal marker.Dimensions in mm1 Field of applicationThis standard specifies mushroom head square neck bolts with metric threads M5 to M20of product grade C.2 Dimensions,designationmax.2pincompletescrew thread(b)Designation of a mushroom head square neck bolt,with screw thread d M 10,lengthI=70 mm and strength category 3.6 or'4.6 (at manufacturer's discretion):Mushroom head bolt DIN 603-M 10 x 70Continued on pages 2 to 579