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DIN EN ISO 8744 Standard Dimensions for Grooved pins, full length taper grooved

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Technical History and International Equivalents of DIN EN ISO 8744

Equivalent standards: NF EN ISO 8744 UNI EN ISO 8744

Full-length taper grooved pins

 

made of steel or austenitic stainless steel which have three equally spaced grooves impressed longitudinally on their exterior surface, with nominal diameter, d, from 1,5 mm to 25 mm inclusive. The displaced material to each side of the grooves forming an exapnded diameter, d1, which is larger than the nominal diameter d, will cause a non-positive locking fit when these grooved pins are forced into a drilled hole equal to the nominal diameter d.

Dimensional Drawing and Technical Diagrams

169_4206.jpg

Key Dimensions and Technical Parameters

Dimensions in mm - source DIN EN ISO 8744
Publication date: 03/1998 - Supersedes DIN EN 28744: 10/1992 edition
d nom
 1.5 2 2.5 3 4 5 6 8 10 12 16 20 25
a 0.2 0.25 0.3 0.4 0.5 0.63 0.8 1 1.2 1.6 2 2.5 3

DIN 8744 - Expanded diameter 'd1' - commercial items
d nom
1.5
2
2.5
3
4
5
6
8
10
12
16
20
25
nominal length l
8

1.63

 2.15 2.7 3.25 4.3 5.3
10 3.3 6.3
12 1.6 4.35 8.35
14 5.35 6.35 10.4 12.4
16
18 2.65 3.25 8.4
20
22 4.3 5.3 10.45 12.45
24 16.55
26 3.2 16.6 20.6 25.6
28
30
32 6.3 8.35
35
40 4.25
45 5.25 10.4 12.4
50
55 6.25 16.55
60 8.3
65 10.35
70 12.3
75
80
85 8.25
90
95 16.5
100
120 10.3

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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