Diall Self drill Steel Cavity plug (Dia)13mm (L)32mm, Pack of 100

Needed to put frame up on plasterboard wall and in past use wall anchors with varying success, i was recommended these by a friend and they worked a treat. Good value for money too

I have never used these before and they are fantastic. I had always used hollow wall anchors. But those are problematic slipping round as one winds in screw to compress or not compressing because of hidden material around back of hole.
These on the other hand are faultless. Two tips I would give are drill a 5mm hole to the correct depth of the plug as wall behind hole will stop it going fully in if absolute accuracy is needed. And don’t expect the screw to go fully into plug completely flush, leave 9mm of screw protruding as instructions show otherwise screw will bottom out and you will risk over turning plug and it will become loose as it damages the plasterboard.

For some reason they give you 35mm screws for a 32mm plug so, yeah, great for hanging decorations but I'm trying to fit a wardrobe to the wall and have near enough 6mm of screw that can't go anywhere! I checked the description and it doesn't actually tell you this from the website listing.
Now to go back to the shop..!

Having used similar fixings by 'Fischer' (other makes available) I decided to purchase a box of these Diall ones...because they were cheaper. They don't feel as secure when the plug is fitted, and when you insert the accompanying screw it binds up at the end. If you don't notice you end up stripping the thread in the plasterboard as you tighten the screw, if you do notice you strip it attempting to remove the screw. Can't recommend the Fischer ones over these enough. But you get what you pay for!