"Can't understand why people have trouble fixing these. The fixing tool is essential and a little light oil on the end of the screw works wonders.Have now used them for fixing plasterboard, plywood and recently fixing a thick rubber rubbing strake to a grp substrate. Could do with a A4SS version."
"I'd just like to point out that there is a way to avoid the problems in the low-rating review. Yes, certainly the outer sleeve can rotate and dig its way through the plasterboard, but if you grip the lip with spikes on in a mole wrench or pair of pliers as you tighten the screw this can be avoided. Once the legs have started bending behind tghe plasterboard you can let go and allow the outer sleeve to settle into the wall."
"I bought these interset fixings as a stronger and better alternative to the screw in metal fixings I'd been using. I wanted to put some floating shelves up, which are good to about 10kg weight, so I needed something very sturdy.
Initially, these fixings seemed like the perfect solution - I was also sold a fixing tool to make life easier and quicker when setting them.
But, things went wrong fairly quickly. Firstly, I was sold the wrong fixing tool. But, as I already knew, they are not essential; you should be able to use a screwdriver and a little elbow grease.
Thinking I would be okay, I drilled the right sized hole in my wall, inserted the fixing and went to tighten it up (supposedly when the back balloons out to grip the other side of the cavity). The fixing head has little claws that are supposed to grip the plaster and prevent it from twisting, while you use the screw to open the back out. But I found that seven of the intersets in the pack of 20 didn't work properly and ended up burying into the wall itself. Once they open even slightly, it is impossible to pull them out without damaging the plaster badly, so you have to tap them into the wall and plaster over...
As you can imagine, having followed the instructions on the pack, I was more than annoyed that this issue happened 7 times.
What I think needs to change is there should be either longer claws on the head of the interset, or more of them, or even both. Currently there are two, but if your plasterboard isn't that great, you will almost certainly end up with holes where it hasn't gripped properly.
I will be heading into my local branch to ask for a refund and whether there is anything that they will do to rectify the damage to my walls.
It's deeply annoying; the concept to this fixing is very good, but this particular product seems to have a high fail rate. My advice - let a professional use these and do it for you, or simply avoid until Rawl have invented a better device..."