Legend:
b – length of the thread (at least)
l – length of bolt
d – the nominal diameter of the thread
k – head height
t – groove depth
dk – head diameter
A – groove
Makings:
Steel: 4.8
Stainless: A2
Plastic: –
Non Ferrous: –
Thread: 6g
Table according to ISO 14584:
D | M2 | M2,5 | M3 | M4 | M5 | M6 | M8 | M10 |
a max. | 0,8 | 0,9 | 1 | 1,4 | 1,6 | 2 | 2,5 | 3 |
b min. | 25 | 25 | 25 | 38 | 38 | 38 | 38 | 38 |
dk max. | 4,4 | 5,5 | 6,3 | 9,4 | 10,4 | 12,6 | 17,3 | 20 |
k max. | 1,2 | 1,5 | 1,65 | 2,7 | 2,7 | 3,3 | 4,65 | 5 |
TORX | 6 | 8 | 10 | 20 | 25 | 30 | 45 | 50 |
A | 1,75 | 2,4 | 2,8 | 3,95 | 4,5 | 5,6 | 7,95 | 8,95 |
t max. | 0,77 | 1,04 | 1,15 | 1,8 | 2,03 | 2,42 | 3,31 | 3,81 |