How best to screw down old floorboards ? Spax Flooring Screw ? file:///home/george/diy-ub/Spax-Flooring-Screw-Zinc-Yellow-Passivated-4-5-X-60mm-Pack-of-300.html.mht
They have a smooth bit of shaft so the floorbaord will be pulled down tight, but the bit of thread at the top seems to me to spoil this effect: either the thread there will grip and hold the board up, or it will tear the wood, pulling the board down. So why have a bit of thread at the top? [g]