Distributore BUMAX ITALIA
Viti Bulloni Alta Resistenza Meccanica

VITI AUTOFORMANTI ISO 14583 – Bumax Hard Taptite



Thread

d M3 M4 M5 M6 M8
Pitch of thread 0.5 0.7 0.8 1 1.25
dk 5.6 8 9.5 12 16
k (max.) 2.4 3.1 3.7 4.6 6
Torx no. T10 T20 T25 T30 T45

Screw length | Approximate weight per 100

l kg kg kg kg kg
6 0.6
8 0.7 0.15
10 0.8 0.17 0.28
12 0.9 0.18 0.31 0.51
16 0.22 0.35 0.58 1.2
20 0.41 0.65 1.4
25 0.74 1.5
30 0.82 1.7
40 2.0

Sample order: All lengths are supplied in a fully-threaded design.
Guide values for hole diameter – refer to technical information.

For assembly in structural steel type ST37 and stainless steel

Packaging

Diameter M3 M4 M5 M6 M8
No. per pack 500 200 100 100 50