On Mon, 14 Mar 2011 17:27:08 +0000, fred wrote:

In article , george [dicegeorge]
writes
On 14/03/11 13:06, Roger Mills wrote:
On 14/03/2011 12:00, george [dicegeorge] wrote:
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



Please give a proper link. How are we supposed to access a file on
*your* hard disk?!
ooops...

http://www.screwfix.com/prods/88716/...s/Spax/Spax-T-
Star/Spax-Flooring-Screw-Zinc-Yellow-Passivated-4-5-X-60mm-Pack-of-300

I can't see the benefit of those over conventional, fully cut screws. If
the board is not fully tightened to the joist already then the final
tightening action of pulling the board down will cause the top thread to
strip out of the board so the benefit of that part is lost.

In a similar spot, I'd use these: http://www.screwfix.com/prods/22388/

Unless I'm mistaken those appear to be left-hand thread.