M12 X 120 ETA OPTION 7 THROUGH BOLTS BZP 20PC

Ideal for fixing brackets, cladding, restraints, racking, fabricated stairwells and industrial doors.
Ensure the correct socket drive or spanner is used to ensure accurate installation.

Zinc coatings prevent oxidation of the protected metal to create a longer lasting finish. It does this by forming a barrier and by acting as a sacrificial anode if this barrier is damaged. Zinc oxide is a fine white dust that (in contrast to iron oxide) does not trigger a breakdown of the substrates surface integrity as it is formed. The zinc oxide, if left intact, can act as a barrier to further oxidation, in a way similar to the protection afforded to aluminium and stainless steels by their oxide layers.