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The metric steel / metal threads specified in this catalog are based on these tolerance fields. For threads with surface or heat treatment (e.g. sandblasting, powder coating, zinc plating, tempering, etc.), it may not be
10.5 DIN 13 ISO Metric threads ISO Metric threads – DIN 13 (Thread limits for standard engagement lengths to UNI 5545-65) Nominal thread-Ø Gra-dient P Screw with tolerance of 6g Nut screw with tolerance of 6H Ø major d Ø pitch d 2 Ø minor d 1 Ø major D Ø pitch D Ø minor D max. min. max. min. max. min. min. max. min. max. min. max.
ISO METRIC THREADS - DIN 13 (thread limits) P (mm) Screw with tolerance of 6g Nut screw with tolerance of 6H Ø major d Ø pitch d2 Ø minor d1 Ø major D Ø pitch D2 Ø minor D1 max. min. max. min. max. min. min. max. min. max. min. max. M3 0.5 2.980 2.874 2.655 2.580 2.367 2.273 3.000 2.675 2.775 2.459 2.599
ISO Metric Coarse Thread DIN 13-1. Specifications of International Thread Standards. This thread is a globally standardized thread, it replaces older metric thread and most threads with inch dimensions. The label consists of the letter M followed by a number indicating the nominal diameter, the flank angle is 60 °. Advertising:
DIN : 13 Part 13/21/22/23. Metric (ISO) screw thread, fine series - MF- Basic profile and limiting profiles. Limits of sizes for metric screw thread, fine series, fit 6H/6g. mum material profiles. The maximum material profile of the internal threa. = basic major diameter. = pitch. = d major diameter. 2 = d pitch diameter. 3 = d minor diameter. }
ISO 724 - ISO general-purpose metric screw threads - Basic dimensions (DIN 13), the standard in Europe, is recognizable by its cylindrical outer and inner diameter and its precise outer diameter in millimeters.
It specifies selected sizes for coarse and fine screw threads for screws, bolts and nuts and limits of sizes for commonly used tolerance classes.
