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DIN EN 28736 Standard Dimensions for Taper pins with internal thread, unhardened

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This standard DIN EN 28736 specifies the characteristics of unhardened taper pins with internal thread, and metric dimensions and nominal diameters, d, from 6 to 50 mm inclusive.

Dimensional Drawing and Technical Diagrams

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Key Dimensions and Technical Parameters

Dimensions in mm - source DIN EN 28736
Publication date: 10/1992 Supersedes DIN 7878: 02/1977
d1 max
 d2 nom a t1 nom
t2 min
 t3 nom
6
 M4 x 0.7 0.8 6 10 1
8 M5 x 0.8 1 8 12 1.2
10 M6 x 1 1.2 10 16 1.2
12 M8 x 1.25 1.6 12 20 1.2
16 M10 x 1.5 2 16 25 1.5
20 M12 X 1.75 2.5 18 28 1.5
25 M16 X 2 3 24 35 2
30 M20 X 2.5 4 30 40 2
40 M20 X 2.5 5 30 40 2.5
50 M24 X 3 6.3 36 50 2.5

DIN EN 28736 - ≈ weigth in kg x1000 pcs, (ρ=7,85 kg/dm3) - commercial items
d1 6 8 10 12 16 20 25 30 40 50
nominal length l
16 2.77
18 3.27 5.55
20 3.77 6.41
22 4.28 7.28 10.7
24 4.79 8.12 12
26 5.31 9.02 13.4 16.5
28 5.84 9.92 14.7 18.4
30 6.37 10.8 16.1 20.4
32 6.91 11.8 17.5 22.3 37.3
35 7.73 13.1 19.6 25.3 42.5
40 9.13 15.5 23.2 30.3 51.1 78
45 10.5 17.9 26.8 35.4 59.9 91
50 12 20.4 30.5 40.6 68.7 105 144
55 13.5 22.9 34.2 45.8 77.7 118 165
60 15.1 25.5 38.1 51.1 86.8 132 186 246
65 28.1 42 56.5 95.8 146 208 276
70 30.8 45.9 62 105 160 229 307
75 33.5 49.9 67.6 115 174 251 337
80 36.3 54 73.2 124 188 272 368 708
85 58.2 78.9 134 203 294 399 762
90 62.4 84.7 143 217 316 430 815
95 66.7 90.6 153 232 338 461 869
100 71.1 96.4 163 247 361 492 923 1396
120 121 204 308 452 620 1143 1731
140 246 370 546 751 1366 2072
160 291 435 642 885 1594 2419
180 502 741 1022 1826 2770
200 572 843 1163 2062 3126

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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