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DIN EN 28737 Standard Dimensions for Taper pins with external thread, unhardened

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Technical History and International Equivalents of DIN EN 28737

Equivalent standards: ISO 8737 UNI EN 28737 NF EN 28737 BS EN 28737

Taper pins with external thread, unhardened

This standard DIN EN 28737 specifies the characteristics of unhardened taper pins with external thread, and metric dimensions and nominal diameters, d, from 5 to 50 mm inclusive.

Dimensional Drawing and Technical Diagrams

267_2387.jpg

Key Dimensions and Technical Parameters

Dimensions in mm - source DIN EN 28737
Publication date: 10/1992 - Supersedes DIN 7977 02/1977
d1
5
6
8
10
12
16
20
 25 30 40 50
b
min.
14
18
22
24
30
35
 35 40 52 58
70
max.
15.6
20
24.5
27
30.5
39
39
 45 46 65 78
a max
2.4
3
4
4.5
5.3
6
6
 7.5 9 10.5 12
d2
M5
M6
M8
M10
M12
M16
M16
 M 20 M 24 M 30 M 36
d3 max 3.5 4 5.5 7 8.5 12 12 15 18 23 28
d3 min 3.25 3.7 5.2 6.6 8.1 11.
z min 1.25 1.5 2 2.5 3 4 4 5 6 7 9

DIN EN 28737 - ≈ weigth in kg x1000 pcs, (ρ=7,85 kg/dm3) - commercial items
d1

5

 6 8 10 12 16 20 25 30 40 50
nominal length l
40 5.9
45 6.9 9.6
50 7.9 10.9
55 12.2 20.2
60 13.6 22.7
65 25.2 36.8
75 30.1 44.5
85 52.2 74
100 63.8 90.7 154
120 113 191 270
140 230 328 490
160 272 386 582 795
190 485 720 990 1618
220 870 1190 1948 2800
250 1020 1400 2298 3370
280 1620 2648 3900
320 3149 4630
360 5400
400 6140

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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