These Forgefix Hex head single thread Coach Screws are Zinc Plated for increased corrosion resistance. They are supplied with rimless plugs, which allow insertion under the substrate surface to suit the fixture. The coach screw conforms to DIN 571 standards.
APPLICATION
Can be used with all washer types.
Used widely in heavier timber installations and for fixing timber to masonry. Also popular as a fixing for satellite dish installation together with a rimmed or rimless wall plug.
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 substrate's 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.
Single thread screws have been designed to offer higher pull out values and quicker insertion. The hexagonal head has been designed for use with spanners or sockets and offers maximum torque when used with these tools.
Fixing Kit Coach Screw M6 x 60 Blister 4