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Legend:
d1 – the nominal diameter of the thread
P – thread pitch
b – length of the thread (at least)
l – length of bolt
k – head height
ds – diameter of the screw shank
dk – head diameter
m – groove width
d3 – small diameter thread
Makings:
Steel: steel
Stainless: –
Plastic: –
Table according to DIN 7997:
| d | 3 | 3,5 | 4 | 4,5 | 5 | 6 |
| b | >= 0,6 x l |
>= 0,6 x l |
>= 0,6 x l |
>= 0,6 x l |
>= 0,6 x l |
>= 0,6 x l |
| k | 1,65 | 1,93 | 2,2 | 2,35 | 2,5 | 3 |
| d1 | 5,6 | 6,5 | 7,5 | 8,3 | 9,2 | 11 |
