Peter Percival wrote:
Rick Hughes wrote:
[snip]

you could use resin fixings, no risk of cracking concrete and hole is
fully filled

Excuse my ignorance, but I've never heard of resin fixings.

You drill a hole, inject a liquid resin and hardener then insert a threaded
rod and wait for the resin to harden before using the rod to bolt down the
attachment.

Another method is to use non-expanding masonry screws. These need an exact
hole drilling so you need an SDS drill and the appropriate bit.

http://www.toolstation.com/shop/Scre.../sd1950/p82307

Also available as "Multi-Monti" from Screwfix and other places.

--
€¢DarWin|
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