I'm about to lift an Oak floor that has shrunk in order to re-lay it after straightenin the boards.
Here's a picture one of the gaps! http://www.songcity.co.uk/MyPictures/Floorboards1.jpg
Due to the shrinkage the screws have been bent over and I'm unable to unscrew them.
The screws are hardened steel BZP and I wondered if anyone knew which type of drill bit I would need to drill the heads off. I have a couple of metalwork drills and they don't touch the screw heads.
Or maybe another suggestions/approach for unscrewing them.