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DIN EN ISO 4027 Standard Dimensions for Socket set screws with cone point

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Technical History and International Equivalents of DIN EN ISO 4027

Equivalent standards: UNI EN ISO 4027 ISO 4027 BS EN ISO 4027

Hexagon socket set screws with cone point

This international standard (DIN EN ISO 4027) specifies the characteristics of hexagon socket set screws with cone point and threads from M1,6 up to and including M24 and of product grade A. The cone point set screws are used for permanent location of the parts. Deep penetration gives highest axial and torsional holding power.

The main materials used for the production of set screws are: AISI 420 (48-52 HRC) top mechanical properties and corrosion resistance; 45 H (14.9) standard and heavy-duty applications; 33H (12.9) 22H (8.8) used in applications where moderate stress is requested, large diameters; 21H STAINLESS STEEL A2-A4 excellent corrosion strength and heat resistance; 14H (4.6) for applications where moderate stress is required, threaded pins.

Dimensional Drawing and Technical Diagrams

229_mvo3jl_din-914.jpg

Key Dimensions and Technical Parameters

Dimensions in mm - source DIN EN ISO 4027
Publication date: 05 - 2004
d thread size P d1 max
s nom
 e min
t min (depending on l)
M 1.6 0.35 0.4 0.7 0.809 0.7÷1.5
M 2
 0.4 0.5
0.9
 1.011 0.8÷1.7
M 2.5
 0.45 0.65
1.3
 1.454 1.2÷2
M 3
 0.5 0.75
1.5
 1.733 1.2÷2
M 4
 0.7 1
2
 2.303 1.5÷2.5
M 5
 0.8 1.25
2.5
 2.873 2÷3
M 6
 1 1.5
3
 3.443 2÷3.5
M 8
 1.25 2
4
 4.583 3÷5
M 10
 1.5 2.5
5
 5.723 4÷6
M 12
 1.75 3
6
 6.863 4.8÷8
M 16
 2 4
8
 9.149 6.4÷10
M 20 2.5 5 10 11.429 8÷12
M 24 3 6 12 13.716 10÷15

DIN 4027 - Approximate mass, in kg x1000 pcs, (ρ=7,85 kg/dm3) - commercial lengths
d thread size M1.6 M2 M2.5 M3 M4 M5 M6 M8 M10 M12 M16 M20 M24
nominal length l
2 0.021 0.029
2.5 0.025 0.037 0.063
3 0.029 0.044 0.075 0.09
4 0.037 0.059 0.1 0.13 0.18
5 0.046 0.074 0.125 0.17 0.26 0.37
6 0.054 0.089 0.15 0.21 0.34 0.49 0.69
8 0.07 0.119 0.199 0.29 0.5 0.73 1.04 1.72
10 0.148 0.249 0.37 0.66 0.97 1.39 2.35 3.41
12 0.299 0.45 0.82 1.21 1.74 2.98 4.42 6.1
16 0.61 1.14 1.69 2.44 4.24 6.43 8.9 14.9
20 1.46 2.17 3.14 5.5 8.44 11.7 20.1 30.4
25 2.77 4.02 7.08 10.9 15.3 26.6 40.7 54.2
30 4.89 8.65 13.5 18.8 33.1 51 68.7
35 10.2 16 22.3 39.6 61.3 83.2
40 11.8 18.5 25.8 46.1 71.6 97.7
45 21 29.3 52.6 81.9 112
50 23.5 32.8 59.1 92.2 127
55 36.3 65.6 103 141
60 39.8 72.2 113 156

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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