Hi Everyone! I have some existing terracing in the garden using (two tier) untreated oak sleepers. I am about to extend the terracing and have bought some galvanised steel stakes to drive into the ground and attach to the sleepers. I spent some time researching the correct screws to use and stainless steel seemed the way to go (to avoid corrosion & staining). But I struggled to find the right size in time, so ended up purchasing some zinc plated coach screws in the end... https://www.screwfix.com/p/turbocoach-coach-screws-yellow-zinc-plated-6-x-70mm-100-pack/22717 It states they're suitable for hardwood, but just wanted to double check before committing? Any advice would be much appreciated.