DIN 13-23 (2005-08)现行
ISO general purpose metric screw threads Part 23: Limits of sizes for fine pitch threads with the prefered tolerance classes; Nominal diameter from 53 mm to 110 mm
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
This standard is included in DIN Handbook 45. Applies to ISO metric screw threads having the basic profile as defined in DIN 13 Part 19. The limits for the bolt root radius are expressed by R = 0,144 P = H/6 for the maximum dimension and by Rmin = 0,125 P = H/7 for the minimum dimension of the minor diameter d3, as specified in DIN 13 Part 14. It specifies limits of sizes for fine screw threads within the range 53 to 110 mm nominal screw thread diameter, together with the commonly used tolerance range 53 to 110 mm nominal screw thread diameter, together with the commonly used tolerance classes.
SNV DIN 13-23:1983 - Identical
