ive seen this method mentioned a number of times, but one thing puzzles me .....
If your drill bit is say 6mm (for red plugs), and you are using 4mm screws, then what's to stop the screw head passing right through the batten?
If your drill bit is say 6mm (for red plugs), and you are using 4mm screws, then what's to stop the screw head passing right through the batten?