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UNI 5923 Standard Dimensions for Socket set screws with flat point

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Technical History and International Equivalents of UNI 5923

This norm has been cancelled
This norm has been replaced by DIN EN ISO 4026

Hexagon socket set screws with flat point. ISO metric coarse and fine thread. Product grade a.

This norm specifies the features of set screws with hexagon socket and flat (chamfered) end, with ISO metric coarse thread from M 1.6 to M 24 and fine pitch thread from M 8x1 to M 24x2, grade A. 

Dimensional Drawing and Technical Diagrams

1181_tuvHdc_uni-5923.jpg

Key Dimensions and Technical Parameters

Dimensions in mm - source UNI 5923 Withdrawn
Publication date: 07-1985
d thread size
P
d1 max÷min
e min.
s nom
t (depending on l)
M 1.6
0.35
0.8÷0.55
0.803
0.7
 0.7÷1.5
M 2
0.4
1÷0.75
1.003
0.9
 0.8÷1.7
M 2.5
0.45
1.5÷1.25
1.427
1.3
 1.2÷2
M 3
0.5
2÷1.75
1.73
1.5
 1.2÷2
M 4
0.7
2.5÷2.25
2.30
2
 1.5÷2.5
M 5
0.8
3.5÷3.2
2.87
2.5
 2÷3
M 6
1
4÷3.7
3.44
3
 2÷3.5
M 8 1.25 5.5÷5.2 4.58 4 3÷5
M 10 1.5 7÷6.64 5.72 5 4÷6
M 12 1.75 8.5÷8.14 6.86 6 4.8÷8
M 14 2 10÷9.64 6.86 6 5.6÷9
M 16 2 12÷11.57 9.15 8 6.4÷10
M 18 2.5 13÷12.57 11.43 10 7.2÷11
M 20 2.5 15÷14.57 11.43 10 8÷12
M 22 2.5 17÷16.57 13.72 12 9÷13.5
M 24 3 18÷17.57 13.72 12 10÷15

UNI 5923 - 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 M 14 M16 M 18 M20 M 22 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 0.22
5 0.046 0.074 0.125 0.16 0.28 0.46
6 0.056 0.089 0.15 0.22 0.35 0.54 0.79
8 0.076 0.119 0.199 0.28 0.53 0.8 1.13 1.6
10 0.148 0.249 0.36 0.65 1 1.36 2.25 3.5
12 0.259 0.44 0.83 1.24 1.7 2.9 4.48 6.62
16 0.67 1.13 1.72 2.38 4.2 6.44 8.7 13 14.8
18 1.25 1.96 2.72 4.85 7.42 10.1 15 17.4 23.8 27.5
20 1.43 2.24 3.06 5.5 8.4 11.5 17 20 27 31.5 32.5 41.5
25 2.8 3.91 7.13 10.85 15 22 26.5 35.2 42 45 56.5
30 4.76 8.75 13.3 18.5 27 33 43.4 52.5 57.5 71.5
35 10.33 15.75 22 32 39.5 51.5 63 70 87
40 12 18.2 25.5 37 45 59.6 73.5 83 102
45 20.65 29 42 52.5 67.8 84 96 117
50 23.1 32.5 47 59 75.9 94.5 109 132
55 36 52 65.5 84 105 121 147
60 39.5 57 72 92 115 134 162
65 62 78.5 100 126 147 177
70 65 85 108 136 160 192

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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