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UNI 5712 Standard Dimensions for Hex bolts with large width across flats for high strength strctural bolting

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This norm has been cancelled

Hex bolts with large width across flats for high strength strctural bolting

High-strength large hexagonal bolts for structural engineering. Iso metric coarse thread.

Dimensional Drawing and Technical Diagrams

220_1808.jpg

Key Dimensions and Technical Parameters

Dimensions in mm - source UNI 5712 Withdrawn
Publication date: 06 - 1975- Supersedes March 1979 edition
d thread size
P
ds nom
e min.
k nom.
s nom=max
M 12
1.75
 12
23.91
8
22
M 14 2 14 26.17 9 24
M 16
2
 16
29.56
10
27
M 18 2.5 18 32.95 12 30
M 20
2.5
 20
35.03
13
32
M 22
2.5
 22
39.55
14
36
M 24
3
 24
45.20
15
41
M 27
3
 27
50.85
17
46

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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