I'm not sure about injection fixings, but glass phial type resin anchors (with a
limited amount of resin) need holes 2mm larger than the nominal stud size - M10
studs require a 12mm drill.
Are you fixing anything heavy or vibrating? Aerated blockwork is pretty weak -
for instance the drop down arms and grab rails in disabled toilets don't stay
fixed for too long. You might do well to ring the Thermalite technical advice
line on 08705 626500 and tell them what you want to do.
thanks all, found manufacturers website after much searching. I ordered
Fischer resin from Screwfix but what arrived was labelled Metofix. Found
the Chemfix website (www.chemfix.co.uk), they seem to make Metofix !
Anyway, they have plenty of useful technical info on their products
including a table of hole sizes against anchor size and yes 2mm bigger is
PS latest Screwfix order arrived over three days in four separate packages !
Oh and there was one mistake so another package is on its way. Is five
packages for one order a record ? Must have cost them all their profit in
delivery costs and the five catalogues they have sent.
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