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DIN EN ISO 8741 Standard Dimensions for Grooved pins half length reverse taper grooved

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This standard (DIN EN ISO 8741 and equivalents) specifies the characteristics of half-length reverse 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.

Dimensional Drawing and Technical Diagrams

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Key Dimensions and Technical Parameters

Dimensions in mm - source DIN EN ISO 8741

Publication date: 03-1998 Supersedes DIN EN 28741 10-1992
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 EN ISO 8741 - Expanded diameter d1 - commercial items
d
1.5
2
2.5
3
4
5
6
8
10
12
16
20
25
nominal length l
8 1.6 2.1 2.6 3.1
10 4.15 5.15
12 1.63 6.15
14 2.65 3.15 4.2 5.2 8.2
16 10.2
18 2.15 3.2 6.25
20
22 2.7 4.25 5.25 8.25
24
26 3.25 6.3 8.3 10.3 12.25 16.25 20.25 25.25
28
30
32 8.35 12.3 16.3
35
40 4.3 5.3 10.4 20.3 25.3
45 6.35 12.4 16.4
50 8.4 20.4 25.4
55 10.45
60 12.5 16.5 20.5 25.5
65
70
75
80 8.35
85
90
95 10.4
100
120 12.45 16.45
140 20.45 25.45
160
180
200

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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