DIN 3570 U Bolt Dimensions
| Nominal Size |
Inside wideness "a" |
Thread d3 |
Thread Length b |
Height h |
To use by pipes from |
| d1 |
Nominal Size |
| DN 20 |
30 |
M 10 |
40 |
70 |
25 / 26,9 |
3/4" |
| DN 25 |
38 |
M 10 |
40 |
76 |
30 / 33,7 |
1" |
| DN 32 |
46 |
M 10 |
50 |
86 |
38 / 42.4 |
1 1/4" |
| DN 40 |
52 |
M 10 |
50 |
92 |
44.5 / 48.3 |
1 1/2" |
| DN 50 |
64 |
M 12 |
50 |
109 |
57 / 60.3 |
2" |
| DN 65 |
82 |
M 12 |
50 |
125 |
76.1 |
2 1/2" |
| DN 80 |
94 |
M 12 |
50 |
138 |
88.9 |
3" |
| DN 100 |
120 |
M 16 |
60 |
171 |
108 / 114.3 |
4" |
| DN 125 |
148 |
M 16 |
60 |
191 |
133 / 139.7 |
5" |
| DN 150 |
176 |
M 16 |
60 |
217 |
159 / 168.3 |
6" |
| DN 175 |
202 |
M 16 |
60 |
249 |
191 / 193.7 |
7" |
| DN 200 |
228 |
M 20 |
70 |
283 |
216 / 219.1 |
8" |
| DN 250 |
282 |
M 20 |
70 |
334 |
267 / 273 |
10" |
| DN 300 |
332 |
M 20 |
70 |
385 |
318 / 323.9 |
12" |
| DN 350 |
378 |
M 24 |
70 |
435 |
355.6 / 368 |
14" |
| DN 400 |
428 |
M 24 |
70 |
487 |
406.4 / 419 |
16" |
| DN 500 |
530 |
M 24 |
70 |
589 |
508 / 521 |
20" |