Full-length parallel grooved pins

This standard (DIN EN ISO 8740) specifies the characteristics of full-length parallel grooved pins made of steel or austenitic stainless steel with chamfer which have three equally spaced grooves impressed longitudinally on their exterior surface and a pilot to facilitate insertion, 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 8740

Publication date 03-1998 Spersedes DIN EN 28740 10-1992

d nom
1.5 2 2.5 3 4 5 6 8 10 12 16 20 25
d1 expanded diameter for all lengths 1.6 2.15 2.65 3.2 4.25 5.25 6.3 8.3 10.35 12.35 16.4 20.5 25.5
c1
0.12 0.18 0.25 0.3 0.4 0.5 0.6 0.8 1 1.2 1.6 2 2.5
c2 0.6 0.8 1 1.2 1.4 1.7 2.1 2.6 3 3.8 4.6 6 7.5
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 8740 - d1 expanded diameter - commercial items

d 1.5 2 2.5 3 4 5 6 8 10 12 16 20 25
nominal length l
8 1.6 2.15
10 2.65 3.2 4.25
12
14 5.25 6.3 8.3 10.35
16
18 12.35
20
22 16.4
24
26 20.5 25.5
28
30
32
35
40
45
50
55
60
65
70
75
80
85
90
95
100