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M3x8 Csk Socket Screws Zinc Plated (Pack of 500) [Grade 10.9]Product Code: FM03-008CSH-Z | HX Fixings |
£12.47 Ex VAT: £10.39 | 3 Days |
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 aluminum and stainless steels by their oxide layers.