Introduction
Dimensions of studs with internal thread (IS)
| D6 | l1 | bmin | d2 r 0,2 | d1 r 0,1 | h1 | D r 1° a |
| M3 | 10 12 16 |
5 | 6,0 | 5,0 | 0,7 to 1,4 | 7° |
| M4 | 10 12 16 20 |
5 | 7,0 | 6,0 | ||
| 6 | ||||||
| M5 | 10 12 16 20 |
6 | 9,0 | 7,1 | 0,8 to 1,4 | |
| 10 | ||||||
| M6 | 16 20 25 |
10 | 8,0 | |||
| For applications using sheet thicknesses > 2 mm and welding times > 60 ms, the angle D may be increased up to 14°. | ||||||