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DIN EN ISO 8765 Standard Dimensions for Hexagon bolts, metric fine thread grade A & B

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Technical History and International Equivalents of DIN EN ISO 8765

Equivalent standards: UNI EN ISO 8765 NF EN ISO 8765 BS EN ISO 8765

This standard (DIN EN ISO 8765) specifies the characteristics of hexagon head bolts with metric fine pitch thread with nominal thread diameters, d, from 8 mm to 64 mm, of product grade A for nominal thread diameters, d, from 8 mm to 24 mm and nominal lengths, l, up to and including 10d or 150 mm, whichever is the shorter, and of product grade B for nominal thread diameters, d, over 24 mm or nominal lengths, l, over 10d or 150 mm, whichever is the shorter.

Key Dimensions and Technical Parameters

Dimensions in mm - source DIN EN ISO 8765
Publication date: 04/2013 Replaces DIN EN ISO 8765: 03/2001
d thread size Pitch b (l<=125) b (l>125<=200) b (l>200) s e k
nom=max min A min B min A min B nom min A min B
M 8 1 22 28 41 13 12.73 12.57 14.38 14.2 5.3 5.15 5.06
M 10 1-1.25 26 32 45 16 15.73 15.57 17.77 17.59 6.4 6.22 6.11
M 12 1.25-1.5 30 36 49 18 17.73 17.57 20.03 19.85 7.5 7.32 7.21
M 14 1.5 34 40 57 21 20.67 20.16 23.36 22.78 8.8 8.62 8.51
M 16 1.5 38 44 57 24 23.67 23.16 26.75 26.17 10 9.82 9.71
M 18 1.5 42 48 61 27 26.67 26.16 30.14 29.56 11.50 11.28 11.15
M 20 1.5-2 46 52 65 30 29.67 29.16 33.53 32.95 12.5 12.28 12.15
M 22 1.5 50 56 69 34 33.38 33 37.72 37.29 14 13.78 13.65
M 24 2 54 60 73 36 35.38 35 39.98 39.55 15 14.78 14.65
M 27 2 60 66 79 41 - 40 - 45.2 17 - 16.65
M 30 2 66 72 85 46 - 45 - 50.85 19 - 18.28
M33 2 72 78 91 50 - 49 - 55.37 21 - 20.58
M 36 3 78 84 97 55 - 53.8 - 60.79 22.5 - 22.08
M 39 3 84 90 103 60 - 58.8 - 66.44 25 - 24.58
M42 3 90 96 109 65 - 63.1 - 71.3 26 - 25.58
M 45 3 96 102 115 70 - 68.1 - 76.95 28 - 27.58
M 48 4 102 108 121 75 - 73.1 - 82.6 30 - 29.58
M 52 4 - 116 129 80 - 78.1 - 88.25 33 - 32.5
M 56 4 - 124 137 85 - 82.8 - 93.56 35 - 34.5
M 60 4 - 132 145 90 - 87.8 - 99.21 38 - 37.5
M 64 4 - 140 153 95 - 92.8 - 104.86 40 - 39.5
Designation: Hex head bolts: DIN EN ISO 8765- M12 x 1,5 x 80 - 8.8

DIN EN ISO 8765 - commercial items
d thread size
M8
M10
M12
M14
M16
M18
M20

M22
M24
 M27 M30
nominal length l
35
40 X
45 X X
50 X X X
55 X X X
60 X X X X
65 X X X X X
70 X X X X X X
75 X X X X X X
80 X X X X X X X
85 X X X X X X
90 X X X X X X
95 X X X X X X
100 X X X X X X X
110 X X X X X X X X
120 X X X X X X X X X
130 X X X X X X X X
140 X X X X X X X X
150 X X X X X X X
160 X X X X X X X
170 X X X X X X
180 X X X X X
190 X X X X X
200 X X X X X
220 X X X X
240 X X X
260 X X
280 X
300 X

DIN EN ISO 8765 - commercial items
d thread size M33 M36 M39 M42 M45 M48 M52 M56 M60 M64
nominal length l
130 X
140 X X
150 X X X
160 X X X X
170 X X X X
180 X X X X X
190 X X X X X
200 X X X X X X X
220 X X X X X X X X
240 X X X X X X X X
260 X X X X X X X X X X
280 X X X X X X X X X X
300 X X X X X X X X X X
320 X X X X X X X X X
340 X X X X X X X X X
360 X X X X X X X X X
380 X X X X X X X X
400 X X X X X X X
420 X X X X X X X
440 X X X X X X X
460 X X X X X
480 X X X X X
500 X X X

Reproduced by permission of DIN Deutsches Institut für Normung e. V. The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from Beuth Verlag GmbH, Burggrafenstraße 6, 10787 Berlin, Germany.
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