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Image | Product + | Brand | Price | Availability | Qty |
M12x20 Button Socket Screws Zinc Plated (Pack of 50) [Grade 10.9]Product Code: FM12-020BHS-Z | HX Fixings |
£10.91 Ex VAT: £9.09 | 3 Days | ||
M12x20 Socket Button Screw Stainless Steel (Pack of 50) [ISO 7380 Grade 304 A2]Product Code: HX12-020BHS-A2 | HX Fixings |
£17.06 Ex VAT: £14.22 | 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.