ForgeFix Zinc Plated Screw Eyes - ForgeFix 10SE6514, These Forgefix Screw Eyes are Zinc Plated for increased resistance to corrosion. They simply screw directly into timber and similar materials. Drilling a pilot hole is advisable. The screws are also suitable for use with all types of wall plugs. Screw Eyes are used to attach cables, wires and twine to numerous applications. 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. ForgeFix 10SE6514 Screw Eyes ZP 65mm x 14g (Bag of 10)