Quite possibly the worst thing you could get for fixings!
I suggest you go in any outlet B&Q, Wickes etc and get the fischer(or copies) fixings that look like a very course thread.
I use them frequently, but forget the name, they come in either aluminium or plastic, have a "spade" drill bit end,
just mark and drill with the b.o.screwdriver.
One thing, on some dry lining, the dabs are 9mm, or less, these things, sometimes, will hit the masonry behind.
I suggest you mark and drill, then, snap, or cut the drill/spade end off and screw the fixing in place, as I do.
Obviously the plastic ones are cheaper, but just as good and easier to cut off.
These fixings are all but flush when fixed, and have an excellent weight carrying capacity, like big radiators etc, read the packet. Does what it says on the packet!
HTH Regards Rodders