fischerWall Plug, Red/Grey, 8 x 40 mm

These Fischer Duopower rawlplugs (wall plugs) are absolutely fantastic.Like most of us, I've been using the standard yellow/red/brown rawlplugs, that haven't really changed in 50 years.When you open the box of these, you know they are something different.The manufacturing quality is plain to see.They are made in Germany and they ooze class.On the side of each plug is written the word Duo, followed by the diameter of the drill needed, and the diameter of suitable screws.This information is also on the box (Photo 1).The 8mm diameter ones are for use with screws 4.5-6mm diameter.The 6mm diameter ones are for use with screws 4-5mm diameter. (The length of screw is dependent on which plugs you buy, but the screw can be longer than the plug. Just make sure you drill a deep enough hole.)I have used 4mm screws with the 8mm plugs and they feel good and strong to me, however, it is advisable to follow the manufacturers instructions to be able to achieve the full load bearing numbers.They are lovely in use.Easy to insert, either push fit, or with a light tap, and once screwed in, nigh on impossible to pull out.The way they work is very clever, deforming themselves in 3 different ways, depending on the substrate you're using.All of the clever science is in the listing above.(The only place I personally wouldn't use them is screwing into plasterboard.I'm sure they would work well, but I'm a big fan of JCP Blue Rosettes.)Update: I have now tried them on plasterboard and they work well, however, I have found, that due to the crumbly nature of plasterboard, if you use a drill size 1mm smaller than stated, then they hold incredibly firmly.)They are more expensive than standard plugs, but not that much and believe me, the extra is worth every penny.I cannot ever imagine going back to 'ordinary' rawlplugs ever again.Strongly recommended.I hope you found this review helpful.

Great Wall plugs. I used them to tie a couple of tall book cases to the wall. I like the anti-retraction mechanism, it stops the wall plug pulling out if you’ve drilled a little too deep. I used them with 5mm x 40mm hex screws

The best I’ve used in a long time.Well done on a great product and used with the right size drill bit you can’t go wrong. 👍🏻

Got a spare bit of plasterboard to do some tests with a few different styles of metal anchors and plastic plugs and as far as the plastic plugs went, these ones were by far the sturdiest. There are however a few important things to take into consideration when using these duo power plugs and probably the most important is the choice of screw. Initial tests in the plasterboard were were not going very well until I noticed that by using different types of screws I was achieving different results and so after a while I finally settled on using a pan head 4.2ml X 38ml which tightened up to the attached bracket securely every time. Using normal wood screws with cone shaped part under the screwhead was no good but the pan head which is totally flat, really tightened up snugly to the bracket and as a result the bracket was absolutely solid with no movement at all.Another thing to consider is the screw width. Fischer recommend using a screw of between 4 and 5mm but in my tests I found that a 5mm screw was just a tad thick and occasionally it resulted in the plug spinning in the hole so for that reason I would stick with a screw of between 4 and 4.5mm thickness.Next area for consideration is the screw length. These plugs are 30mm long and to get that nifty system of the plug bunching up behind the plasterboard you must use a screw that is no less than say 35mm long which will be long enough to pierce through the back of the plug which in turn, will then draw back the plug down the screw and bunch up against the back of the board. Even though you might think the screw can’t go any further, keep on turning until you feel the screw really tighten up to the bracket and then you’ll know the clever little plug has done it’s job behind the board. Remember to take into account the thicknesses of the bracket before choosing your screw length - for instance, if it’s a thick bracket of say 5mmm then you’ll have to step up your screw length to at least 38mm to allow it to penetrate the plug.Conclusion: Using the right type and size of screw was crucial in my tests with this duo power plug and by using what I consider to be the ideal ones to use, these little plugs were very impressive compared to the other plastic ones I tested. For ultra heavy items to be hung on plasterboard I would still resort to the metal anchor type but for most instances, these duo power plugs are sound.

I use these for installing Tv brackets . These are the best on the market . When you use them the feedback you get is brilliant. Will never use any other brand of plugs again.

I've used loads of plugs doing DIY but these are a different kettle of fish! They are great! Cheap ones have fallen out and made a mess. These are strong and haven't let me down yet (touch wood)

These plugs are blooming brilliant. They give me complete confidence in all materials - even into ceiling plasterboard for moderately heavy lights. I never use any others now and take great pleasure in chucking out the ordinary plugs supplied with items that need attaching to walls and ceilings and using these beauties instead.

Easy to use and provide a strong hold in various materials. It's a great value. Overall, a dependable choice for secure wall mounting.