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Legend:
b – length of the thread (at least)
l – length of bolt
d – the nominal diameter of the thread
k – head height
ds – diameter of the screw shank
dk – head diameter
f – height squared
v – width of the square
r1 – Head radius
Material:
Steel: 4.6,8.8
Stainless: A2
Plastic: –
Table according to DIN 603:
| D | M5 | M6 | M8 | M10 | ||||
| P | 0,8 | 1 | 1,25 | 1,5 | ||||
| b | l < 125mm | 16 | 18 | 22 | 26 | |||
| 125 < l < 200mm | 22 | 24 | 28 | 32 | ||||
| l > 200mm | – | – | 41 | 45 | ||||
| dk | max. | 13,55 | 16,55 | 20,65 | 24,65 | |||
| min. | 12,45 | 15,45 | 19,35 | 23,35 | ||||
| ds | max. | 5 | 6 | 8 | 10 | |||
| min. | 4,52 | 5,52 | 7,42 | 9,42 | ||||
| f | max. | 4,1 | 4,6 | 5,6 | 6,6 | |||
| min. | 2,9 | 3,4 | 4,4 | 5,4 | ||||
| k | max. | 3,3 | 3,88 | 4,88 | 5,38 | |||
| min. | 2,7 | 3,12 | 4,12 | 4,62 | ||||
| r1 | approx. | 10,7 | 12,6 | 16 | 19,2 | |||
| r2 | max. | 0,5 | 0,5 | 0,5 | 0,5 | |||
| r3 | max. | 0,75 | 0,9 | 1,2 | 1,5 | |||
| v | max. | 5,48 | 6,48 | 8,58 | 10,58 | |||
| min. | 4,52 | 5,52 | 7,42 | 9,42 | ||||
