On Sat, 18 Nov 2017 19:45:00 +0000, newshound wrote:

On 18/11/2017 11:02, Graeme wrote:
In message , alan_m
writes

I once bought some brass screws to fit a toilet pan to find years
later that the were brass plated screws (or brass coloured metal
plated) and the heads under the plastic cover were so corroded that
the head had to be drilled out.

grin* Brass plated screws are horrible things.* The ones I removed
from the pan are real brass and will go through my little tumbler for
reuse, good as new.

But even real brass screws will corrode in the presence of bleach, and
slotted ones are a PITA if they get chewed. These days I *always* use
Pozidrive stainless.

I used 6mm st. st. coach screws with hex. head. Carefully filed the head to
a dome, leaving enough hex. for a good box spanner (socket has lead-in, so
needs more hex.) to fit on to.
From above it looks like a round-head screw but with no slot or cross.
--
Peter.
The gods will stay away
whilst religions hold sway