basin unit cannot screw in straight

[misterbob]

Hi Everyone,
Just a diy query - trying to fix a pedestral unit to the wall,i have marked,drilled,plugged the hole ok-but when i come to put the screw into it,underneath the basin-the curve of the basin prevents the screw from going in straight -so it missed the hole and go's into the wall above at a 45 degree angle etc.
Can you get a wall plug which has a nut/bolt thread so i can carefully turn a bolt by its body,feeling it go into the steel ? thread ok
once fully in,i can tighten ok.
Or/Otherwise a bolt that comes in little pieces that you can lock,twist into each other to make up the full length.
the only other way i can think of to get a perfect tight/flush fit is to put the screw fully throught the hole under the basin and move the basin to the wall as i tighten-but will require several helpers/crane-but then how do you attach the pipes ?
thanks
Bob

[Nige F]

Only recently the continental basins have decent straight holes ...........Fisher Fixings make a kit for them......the angled ones they`ve been like that for years Used to be covered with brown gummed tape too "for protection" had to spend hours soaking it off as an apprentice while doing sitework you just have to drill a hole @ the same angle into the wall

[ChrisR]

Then just as you do the screw up the little bit of ceramic snaps off. Unless there are big holes you can put
these
through it usually ends up that silicone is what's actually holding the basin to the wall.