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DIN 478 Square Head Bolts with collar Standard Dimensions, Technical Data and Size Chart Data Table

Click the Button to Download DIN 478 Square Head Bolts with collar Standard Dimensions, Technical Data and Size Chart Data Table in PDF Format

DIN 478 Square Head Bolts with collar Standard Dimensions, Technical Data and Size Chart Data Table
  • Steel: 8.8, 10.9
  • Stainless: 

Equivalent Standards:

  • CSN 021122
  • PN 82301

Terminology and Measurements

  • b – length of the thread (at least)
  • l – length of the bolt
  • d – the nominal diameter of the thread
  • k – head height
  • e – the diameter of the circumscribed circle (not less than)
  • c – thickness of the mounting collar
  • ds – diameter of the screw shank
  • x1 – thread run
  • s – head width
  • r – Head radius
  • da – the maximum diameter of the stem at the head of the screw
  •  – minimum size of the head on the key
Thread dPbcdadcdsekr1sx1
l<125mml>125mmnominalmin.max.max.nominal=max.min.nominal=max.min.max.min.nominalmax.min.min.min.max.min.max.
M50,816-21,882,125,79,58,9254,826,55,9276,827,183,40,2554,822
M6118-21,882,126,810,59,865,8287,4287,828,184,10,2565,822,5
M81,2522-21,882,129,213,512,887,78109,42109,8210,185,50,487,783,2
M101,5263232,883,1211,216,515,8109,781312,31312,7813,226,90,4109,783,8
M121,75303632,883,1213,719,518,661211,731716,31514,7815,228,30,61312,734,3
M162384443,854,1517,72524,161615,732221,162019,7420,2611,10,61716,735
M202,5455254,855,1522,431302019,672827,162524,7425,2613,80,82221,676,3
M243546065,856,1526,436352423,6732312827,7428,2615,20,92423,677,5
l - length of bolt
lnominal1016202530354045505560708090100110120140160180
min.9,71156519,5824,5829,5834,539,544,549,554,459,469,479,489,399,3109,3119,3139,2159,2179,2
max.10,2916,3520,4225,4230,4235,540,545,550,555,660,670,680,690,7100,7110,7120,7140,8160,8180,8
weight kg/1000pcs3,193,944,65,376,74
4,575,656,357,458,559,6510,9
10,812,113,715,717,719,721,7
21,924,427,530,633,736,839,94346,1
39,54347,55256,56165,570798897
8895102110118126134150176192208224240272
172182193203215227252277302327352377427477527
240255270285300315350385420455490525595665735