Distributore BUMAX ITALIA
Viti Bulloni Alta Resistenza Meccanica

VITI CAVA ESAGONALE ISO 4762 – Bumax 109



Thread

d M6 M8 M10 M12
Pitch of thread 1 1.25 1.5 1.75
dk 10 13 16 18
k 6 8 10 12
s 5 6 8 10
Length of thread engagement b 24 28 32 36

Screw length | Approximate weight per 100

l kg kg kg kg
20 0.65 1.3 2.3
30 0.83 1.7 2.8 3.9
40 1.1 2.1 3.3 4.7
50 1.3 2.5 3.9 5.5
60 1.5 2.9 4.6 6.3
70 1.9 3.3 5.2 7.1
80 2.1 3.7 5.9 8.0
90 4.0 6.5 8.9
100 7.1 9.8
120 12
0.22 0.48 1.1 1.5

Sample order: Screws above the stepped line are fully-threaded.
Supplied anti-friction conditioned.

Packaging

Diameter M6 M8 M10 M12
No. per pack 100 50 50 25