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DIN 787 Standard Dimensions for Bolts and screws for T-slots

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Bolts and screws for T-slots

This standard (DIN 787 and equivalents) specifies T-head bolts, which are elements for mounting workpieces or fixtures in T-slots as specified in DIN 650, on machine tool tables, workholding plates, and in workholding fixtures and toolholders.

Dimensional Drawing and Technical Diagrams

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Key Dimensions and Technical Parameters

Dimensions in mm - source DIN 787
Publication Date 02/2005 - Supersedes DIN 787:07/2002
d Thread size a a limit deviations d2 e1 f h1 h2 k
M 5 5

-0.3 -0.5

 10 9 1 6.5 10 3
M 6
 6 12
10
 1.6 8 13
4
M 8
 8 16
13
 1.6 12 18
6
M 10
 10 20
15
 1.6 14 21
6
M 12
 12 -0.3 -0.6 25
18
 2.5 16 25
7
M 12 14 28 22 2.5 20 - 8
M 16
 18 36
25
 2.5 24 -
9
M 20
 22 45
35
 2.5 32 -
14
M 24
 28 56
40
 4 41 -
16
M 30
 36 -0.4 -0.7 70
54
 6 50 -
22
M 36
 42 82
65
 6 60 -
26
M 42
 48 95
75
 6 70 -
30
M 48 54 -0.4 -0.8 110 85 6 80 - 34

DIN 787 2005 - Approximate mass, in kg x1000 pcs, (ρ=7,85 kg/dm3) - commercia items
d Thread size a l l l l l l l l l l l l l l
25 32 40 50 63 80 100 125 160 200 250 315 400 500
M5 5 5 6
M 6
 6 10 15 18
M 8
 8 20 30 40
M 10
 10 40 48 70
M 12
 12 60 90 120 190
M 12 14 75 100 140 200
M 16
 18 135 220 300 430
M 20
 22 340 440 610 810
M 24
 28 660 850 1130 1200
M 30
 36 1330 2000 2270 3300
M 36
 42 2400 3000 4100
M 42
 48 3400 4300 5800
M 48 54 5300 8300 9200

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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