Screw not catching in interset wall fixing!

Cakes and Ale

Using some rawlplug interset to put up some shelves on a wall with insulated plasterboard. However, in one of the intersets the screw is just pushing all the way in and is not catching at all. There's two brackets with two screws each, all the others have gone in. Is there any way to fix this without taking out the interset? Could you glue the screw in (the shelf will be screwed to the brackets) and would this give enough support? (And is there any other simpler or more effective way to fix these on this type of wall?)

cupan_tae

Hi

Hows this one going for you?

Not sure I'm understanding the problem, but is it a faulty interset ?

Is an alternative to find the studs behind plasterboard and fix to them?

cletus

I've had some of those fixings fail on me before. Two main issues are
a) overtightening, which leads to the bars that flatten to shear off, leaving the receiving threaded piece spinning
and
b) the threaded receiver at the end is not crimped in tightly at the factory so it either spins or falls out completely.

In my experience the only solution is to replace. Try drilling the head off and let the rest fall into the cavity, otherwise you'll end up with a rather larger hole than you need

colm_c

As said before. Drill off the head and let it drop into the cavity.

The only way I found to use the intersets is with the gun, doing them by hand/screwdriver was always hit and miss.

Now they are perfect for me everytime and are my preferred fixing.

The Codemaster

Have you tried Snaptoggles? They're the business! Google them - I got a pack on eBay.

Cakes and Ale

Thanks for all the tips - in the meantime I took out the interset which hadn't expanded/opened at all. A friend had suggested this might be the case (they advised that not all of these are reliable to expand in the insulation). They suggested using a screw-in plasterboard fixing, which was still larger for the hole which was left, and was a lot more secure in biting into the surface.