1/2 x 8 Square Head Coach Screws Galvanised (Pack of 25)*
Part No: IM012-800CS-G
Excl VAT: £36.18
3/8 x 5 Square Head Coach Screws Galvanised (Pack of 100)*
Part No: IM038-500CS-G
Excl VAT: £37.10
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.
Galvanising prevents 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. Galvanising is a plating that (in contrast to iron oxide) does not trigger a breakdown of the substrates surface integrity.
Single thread screws have been designed to offer higher pull out values and quicker insertion.