On Mon, 27 May 2013 20:19:12 +0100, "Phil L"
wrote:


I've been using these for years:
http://www.ukfixings.net/7.5mm-x-100...ox-of-100.html
About 8p each.
You can get thicker ones, but I've used the 7.5mm ones for wallplates on
numerous occasions

That's what I'm using for the neighbouring smaller screws - 7.5x150mm
There's an average of one of those per foot, with the larger screws
one every two feet.