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DIN EN ISO 4028 Standard Dimensions for Socket set screws with dog point

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Technical History and International Equivalents of DIN EN ISO 4028

Equivalent standards: UNI EN ISO 4028 ISO 4028 BS EN ISO 4028
This international standard (DIN EN ISO 4028) specifies the characteristics of hexagon socket set screws with dog point and threads from M1,6 up to and including M24 and of product grade A. These set screws used for permanent location of one part to another. The point is normally spotted in a hole drilled in a shaft or on a flat surface milled on the shaft.

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

105_1960.jpg

Key Dimensions and Technical Parameters

Dimensions in mm - source DIN EN ISO 4028
Publication date: 05 - 2004 Replaces: DIN 915 12 - 1980
d thread size P d1 max
s nom
 e min
t min (depending on l)
z max short
 z min short
z max long
 z min long
M 1.6 0.35 0.8 0.7 0.809 0.7÷1.5 0.65 0.4 1.05 0.8
M 2
 0 .4 1
0.9
 1.011 0.8÷1.7 0.75 0.5 1.25 1
M 2.5
 0.45 1.5
1.3
 1.454 1.2÷2 0.88 0.63 1.5 1.25
M 3
 0.5 2
1.5
 1.73 1.2÷2 1 0.75 1.75 1.5
M 4
 0.7 2.5
2
 2.3 1.5÷2.5 1.25 1 2.25 2
M 5
 0.8 3.5
2.5
 2.87 2÷3 1.5 1.25 2.75 2.5
M 6
 1 4
3
 3.44 2÷3.5 1.75 1.5 3.25 3
M 8
 1.25 5.5
4
 4.58 3÷5 2.25 2 4.3 4
M 10
 1.5 7
5
 5.72 4÷6 2.75 2.5 5.3 5
M 12
 1.75 8.5
6
 6.86 4.8÷8 3.25 3 6.3 6
M 16
 2 12
8
 9.15 6.4÷10 4.3 4 8.36 8
M 20 2.5 15 10 11.43 8÷12 5.3 5 10.36 10
M 24 3 18 12 13.72 10 ÷15 6.3 6 12.43 12

DIN EN ISO 4028 - Approximate mass, in kg x1000 pcs, (ρ=7,85 kg/dm3) - commercial lengths
Thread size M1.6 M2 M2.5 M3 M4 M5 M6 M8 M10 M12 M16 M20 M24
nominal length l
2 0.024
2.5 0.028 0.046
3 0.029 0.53 0.085
4 0.037 0.059 0.11 0.12
5 0.46 0.074 0.125 0.161 0.239
6 0.54 0.089 0.15 0.186 0.319 0.528
8 0.07 0.119 0.199 0.266 0.442 0.708 1.07 1.68
10 0.148 0.249 0.346 0.602 0.948 1.29 2.31 3.6
12 0.299 0.427 0.763 1.19 1.63 2.68 4.78 6.06
16 0.586 1.08 1.67 2.31 3.94 6.05 8.94 15
20 1.4 2.15 2.99 5.2 8.02 11 20.3 28.3
25 2.75 3.84 6.78 10.5 14.6 25.1 38.6 55.4
30 4.69 8.35 13 18.2 31.7 45.5 69.9
35 9.93 15.5 21.8 38.3 55.8 78.4
40 11.5 18 25.4 44.9 66.1 92.9
45 20.5 29 51.5 76.4 107
50 23 32.6 58.1 86.7 122
55 36.2 64.7 97 136
60 39.8 71.3 107 151

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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