How strong are Fischer DuoPower wall fixings?

Today I'm showing you how I use Fischer DuoPower wall plugs. These are the 6mm x 30mm plugs used with a 5mm screw. Used in concrete block, aerated 'thermalite' type block and 12.5mm plasterboard (drywall). As usual all tests are axial load tests showing peak values with no safety factor. Always follow manufacturer load ratings.
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#TestTuesday #Fischer #Fixings

[@alanmullock381]

Good solid data Andy,you definitely need a white coat on test Tuesday though!👍👍👍👍👍👍👍👍👍👍👍

[@simplymarci]

Great video. After a quick research I found out that DuoPower 6 (the one your are using) creates a knot like in your video. The one in the picture is the DuoPower 8 I hope to be helpful :)

[@grahamalexander7230]

I discovered the duopower plugs when I was with my daughter "she insisted i buy them because of the funky colour" I was amazed how well they perform and became my goto plugs - thanks for the tests it reinforces my confidence in them as well :)

[@HaggisMuncher-y2u]

For the first time ever, a woman picking something based on only its colour has come in handy 😂

[@grahampayne8571]

Agreed that the Fischer Duopower plugs are game-changing. However, care must be taken not to oversize the hole for the plug as the anti-rotation wings are not very large. Suggest using 5.5mm drill to ensure a snug fit in all substrates.

[@paulhadley9047]

I sometimes drill 1mm undersize in my plasterboard walls with thermalite blocks. It's easy to damage the plasterboard (oversize) leading to a loose fitting. A twist drill gives a cleaner cut and copes with thermalite blocks easily. Over the decades I've used larger and larger plugs - the 1980s rawl plugs pull out eventually. Nothing less than Fisher 8x40 or 10x50 these days.

[@lancearmstrong3252]

@@paulhadley9047 Can I ask what diameter screws do you use with the 8x40 and 10x50 plugs? And what series of Fischer plugs are these? They make them in duo power but also UX.

[@paulhadley9047]

@@lancearmstrong3252 Hi, for strength I always go for the largest diameter recommended for the plug. If the plug says 6 to 8mm I find 6mm can spin in the nylon, but 8mm is firm. Length is important, must be slightly longer than plug depth in wall. For 10x50 I have had good success with long concrete screws from Screwfix. 7.5mm x 100mm. There is a UX 10x60, with long concrete screws I had a solid support for IKEA support rail for kitchen cabinets. The long screw penetrates the block behind the plug, I mark plug depth with tape on drill.

[@johnthompson3462]

When we - Canada - buy the Fischer plugs they come in a kit,so you get screws and plugs.

[@hanzo52]

Please tell me how you hooked a data logger up to that crane scale;)

[@TalibanNinjaBoy]

you should compare a plug to Tapcon masonry screws.

[@sakanora]

As I have now installed thousands of these, I wanted to reiterate two things from this video that are super important when using these: 1) If using your own screws, make sure no unthreaded portion enters the anchor; and 2) do not overtighten, definitely do the final tightening by hand. I've seen too many of these "blow up" because a worker took an impact to them. You'll end up ballooning the anchor and it ends up mangled and spinning in its hole, which eventually requires drilling it out and installing a more time-consuming snap-toggle instead.

[@eddyr3691]

Hi Sakanora, I am curious around the importance of the unthreaded portion not entering the plug. In the video it's not clear why it causes an issue or whether it is only in the plasterboard scenario that is shown. Is it because a portion of the plug does not expand? If that it the main issue, then in solid wall this would lead to reduction in the load bearing relative to the length of the unthreaded portion, but the remainder of the length would expand. Or is there something else I might be missing?

[@carsten764]

i enjoy videos like this i have to say...i've tried the duo power ones a few times now and i gotta say i really do not like them at all...guessing they were meant to replace the sx ones at some point and personally i hope they never go there...i must've used the sx about a million times(sizes from 5 to 12mm) and it's been very rare to get a bad fixing with them...i think they grip way better than the duo power ones...not a fan at all...think the plastic on them is too hard and too stiff...untill they bring out something better i'll stick with the sx

[@Parafinn1970]

I think I mentioned in your previous video I think your results are different due to the different densities of the different concrete blocks you are using. Are you able to pop along to your local university and get a friendly material scientist to test them for you? This I feel will explain the different results you are getting.

[@GosforthHandyman]

It's the same block! 👍

[@olitonottero7620]

@@GosforthHandyman wooow this is getting almost Agatha Christie

[@Anakinuk007]

I bought these today for use in plumbing (fixing shower fittings etc) and was very impressed. They pull tight and feel solid. Will be using these from now on, well worth the money.

[@ThePhilandPam]

I’ll give those Fischers a go, never used them before and usually use the cheap plasplugs, nice one great review 👍

[@philhario3640]

I've used the Duopower ones for a few years now and I have some thoughts. The biggest problem with the duopower ones, which will mirror similar plugs that 'knot up', is that I have found it is very temperamental to choice of screw, distances, and wall material. You see this fairly clear here: kzbin.infohZPtS7EWu38 In the UK, the walls are often pretty nasty for plugging---you can have crumbly plasterboard, crumbly masonry, dot and dab gaps, etc. It's often very hard to know the limitations of what you're drilling into. The problem is that the action of the duopower is largely 'hidden'. Sometimes it works and other times I get a plug that spins, or I'm unsure if it's balled up. Compare that to plugs like Rawlplug Uno or similar that expand when drilled into. They may not be as strong, but you are almost always certain of whether they have 'activated'. Moreover, these plugs exhibit less chance of spinning. There are other advantages to more generic expansion plugs, like the fact that you can fit one into another if all else fails.

[@ianmarsden8568]

Quite a strong reaction to the video in the comments.

[@simonduckworth5941]

Thanks for the tip of using fully-threaded screws for these (and for posting the 5x40mm screws you used)… have had mixed results with these on DIY jobs (screw not tightening, plug spinning), and now I know why! Used a fully-threaded screw with a duo power today, it worked perfectly. Great vid, thanks 👍

[@Ambienfinity]

Thank you for your great advice. I have just bought a heavy Winmau dartboard. It's 5kg and my wall is plasterboard. I was all set to buy self-drilling screws until I saw your tests, and went out and bought a box of Dupower 6mm instead. Tentatively put up the bracket with two duopower this morning and the board is solid as a rock, even with my lousy DIY. Keep up the good work!

[@GosforthHandyman]

Great stuff! Just be careful as the constant movement of a dartboard (pulling darts out over and over) can exceed what these little plugs can handle. I'd normally use expanding metal anchors for something like this. 👍

[@Ambienfinity]

@@GosforthHandyman Thanks, that's great advice. I will look to upgrade what I've done and remount the brackets as you've suggested! Cheers!

[@markcostello2764]

@GosforthHandyman fantastic video I stumbled across, but what's the difference between the DuoPower and the UX or SX?

[@denali9449]

Andy - I realize I am late to the party but here is some info on the Hillman DuoPower plugs which is the Fisher plug here in the US. "Maximum working loads for #8-12 screws and anchors: 1/2 in. drywall is 45 lbs, C90 hollow block is 130 lbs, and 4,000 psi concrete is 210 lbs" These values are for the #8 and #10 screws, values for the #10 and #12 are slightly higher. After pulling out the old abacus, those numbers equate to 20.45 kg, 59 kg and 98.4 kg respectively. A C90 hollow block is a industry standard lightweight concrete masonry unit (CMU). They also state that the working loads should be further reduced by 4 for vibration an shock loading. These numbers have to be read off product pictures on the manufacturers website. www.hillmangroup.com/us/en/Fastening-Solutions/Anchors/Anchors---Hollow-Wall/DuoPower-Nylon-Anchors/DuoPower-Contractor-Strength-Anchors/p/523DP1#specs I wonder if the values you were using from Fisher were not actually working load numbers.

[@Asl6uk]

I've got the 6 x 30 and 8 x 40mm versions. My findings are as follows in 12.5mm plasterboard. The 6 x 30mm version I'm struggling with. I've tried 4mm and 5mm full threaded screws which were long enough to pierce the end of the plug with item to be fixed in place. What I've found with the 5mm screw is it just turns the complete plug round in the hole once the screw gets around halfway down the plug. With the 4mm screw the plug starts to collapse a little bit which ends up wider than the drilled hole but it certainly doesn't really deform that much which is a similar finding to your video. Now, the 8 x 40mm plug I can get repeatable results which are much better. I've tried both the 4mm and 5mm diameter screws and the plug really deforms a treat, spreading out very well behind the plasterboard. I think I will have to try another kind of small plasterboard plug.

[@GosforthHandyman]

Great stuff! I must admit, although I like the DuoPower as a problem solver, I do prefer the Fischer GP/LDF fixings for lightweight use for the reasons you say - less inclined to rotate. I generally use the expanding metal fixings with a setting tool for heavier stuff. 👍

[@Asl6uk]

@@GosforthHandyman Hi, thanks for your reply. I will have to look into the GP/LDF fixing, see what they're all about. Nice videos BTW.

[@Bellakelpie]

Thanks to this video I started using Fischer Duo Power plugs, both the 6mm and 8mm size, on both interior and exterior fastening jobs. Pictures on interior drywall, shelving in the garage into solid brick and hanging basket plants and exterior decorations, house numbers and the like, outside on solid brick. They have been easy to use and so far I have a 100% success rate. Many thanks.

[@joychip5994]

Just to say screw fix cost £6.99. Tool station £3.37 being a woman Screwfix wanted me to buy twisted plasterboard fixings . I declined thanks these work a treat

[@garrymurphy5555]

Hi.. thanks for the comprehensive and very informative / interesting video.. Ive been using these plugs (and Dial Grey Plugs ) both in 8mm x 40mm but with 4.5mm and 5mm fully threaded screws and have had no problems with pull out or shear, but would be interested in any 'Test Tuesday Results' if you ever compare them with your results here..

[@Jonathan06123151]

Great video! May I ask a question about the length of Duopower. I have double layer drywall 25mm I guess ..., so what’s the proper length of Duopower I need for my drywall ,? I want to hang a 65 inch TV on that wall..

[@Drinkyoghurt]

Could you also do a test of these in hollow concrete? In Germany it's quite normal to have brick/sandstone with holes in them for walls dividing rooms. Fischer says an 8x40mm plug can hold about 25kg, making no difference between the SX plus and these Duo Power plugs in their rating. Would be nice to see a real world comparison.

[@TheOgi22]

Hello. Fischer DuoPower 8x65 vs Fischer SXRL 8x100 - please which one is better?

[@jazzyjaytee9961]

I'm a little late to the party, but these fancy plugs are the only ones which are working perfectly for me when it comes to those dreaded perforated sandlime bricks. Those, and on questionable roughcast on porotherm clay blocks, too.

[@jjs9672]

I've only used Fischer DuoFix to hang anything remotely heavy in my house. Absolutely love them. Especially the 10x50 plugs with 5xt0 bolts. They are pricey (5 bucks for 4 plugs and bolts) but its more expensive to replace a tv or two

[@goldcd]

If you look on amazon (and I'm sure elsewhere) they sell a selection for about $20 that come in a nice Sortimo box (and includes 15 10x50s, 30 8x40 and 60 6x30 - all with bolts/screws).

[@tonywatson1412]

Who the hell asks for 10 guage screws ...uk. these days ? 90% of the time we talk in metric , or if its □ drive , its in inches...

[@tonyontrack1967]

I use the DuoPower when I need a reliable fixing in tile/plasterboard situations. Saw them used on 10 Minute (ish) Workshop.

[@juliangardner3357]

Andy, Toolstation are currently doing the 6 x 30mm Duopower plugs for just £3.75 per hundred .

[@GosforthHandyman]

Wow - that's a great price! 👍

[@theartistformallyknownasdi5338]

Always worth checking out Tool station, I often find them cheaper for many items.

[@AdiSneakerFreak]

Would 6/8 of these work in a double skinned plasterboard wall for hanging a 50” TV ?? Thanks for the video

[@lynnenux5763]

Great video. Thanks Andy. I've used Fischer reds for years. After watching this vid I tried the DuoPower. Really impressed. You can really smack them hard into a 5.5mm hole without the mouth of the plug mashing over. Great for me when I'm feeling tired and haven't judged the hole depth too well!

[@brad9189]

A question: if I am later painting a wall with a Fischer Duopower plug installed in the drywall, can the plug be removed (or pushed in deeper) so I can then fill the hole and paint over it?

[@jensschroder8214]

If the red plugs from Fischer were already good, then I'm not surprised that Fischer looked for a way to make better plugs. This is the only way they can maintain their lead.

[@kerberos984]

I really like these, but my only concern is how do they perform if you need to temporarily remove something that is fixed to the wall to redecorate? I haven't yet had to do this but it seems they probably have a reusability of maybe three times before the plug becomes completely chewed up.... then you would need to pull it out of the wall and replace with a new one. Not as issue cost wise, but I can imagine removing the mangled plug from a plasterboard wall creates a bigger hole which likely won't create a tight fit with a fresh duopower plug. Maybe I'm wrong as I'm only a DIYer, but to me this is the only advantage plasplugs or wall anchors have over these, as rescrewing into them doesn't seem to affect them too badly (and not at all with wall anchors) I guess you could just fill the hole with some sort of drillable filler (but do those fillers really work?) wait for it to dry, and effectively start over. Otherwise just move everything slightly every time you redecorate 😂

[@VeryBadReputation]

Will these 6*30 plugs with 5*40 screws be enough for mounting a rail for kitchen cabinets?

[@braaitongs]

I got some Fischer FIS VL 300 T to anchor my screws. But the instructions are in Czech. How do I use this stuff?

[@tipsyguitar]

Hi, The difference with the concrete block is that the internal surface is TOO HARD to allow the plastic fixing to do it's job. It can't change shape.

[@fatdogslow8011]

Watched this video a while ago now. But not really used these plugs. Last week though I fitted a kitchen using these plugs. Some walls were dot and dabbed and others were solid brick. Loved them. Managed to get the wall brackets tight on every wall. Whereas a lot of times before I've had to mess about trying to get a good fixing. They're great. Definitely going on every job with me now.

[@simonphipps9708]

Great video! Have you tried fischer's new Powerfast II chipboard screw? It's suitable for use in fischer plugs (eg Duopower and UX) and has recommended loads so you can make the most of the load bearing capacity of the plug. The only screw in the world that can do this!

[@anglerfish1001]

Would these be suitable for fix Venetian blinds to plasterboard walls hanging from the top of the recess?

[@bamalowbloodrich3581]

@gosforthhandyman Hello, I'm just wondering if you can help me? I'm going to wall mount a TV on to a Brick Wall. No bolts were supplied do you think a 8 X 50mm lag bolt is sufficient enough for a UK wall with Plaster on it. I have 10 X 50 plugs. I can't find any 10 X 60 wall plugs. The wall mount instructions recommend a 8 X 60 lag bolt. But I can't find any with a thread to the end. Any help would be greatly appreciated.

[@eddyr3691]

Same issue, cant find any full thread coach screws. Dis you have any luck, what did you do in the end?

[@Kevin_Curtis]

Can you test Rawlplug 4All universal plugs next? I've been pretty impressed with them.

[@gandalfcorvotempesta]

if you look at the marketing PDF from Fischer, the safety factor Is 7

[@RexBanner_]

So with the duopower you cannot do knock through installation? (such as attaching skirting)

[@johnregan3591]

No he said you can.

[@whitechris720]

I would think you would use such fasteners to hang things on walls etc. More of a side load then pulling straight out. I live in the states and they are sold at the Home Depot screws included. I like them a lot, it's the only drywall anchor I buy currently.

[@Ssssshhhhh1885]

Balls up....😄😄😄😂😂😂😂😂😂😂😂😂😂😂

[@jason-hh6lu]

😂😂😂

[@JasonShowell]

Great video, I was looking at these plugs but never realised it was quite so versatile. I have to say, I generally use the red EasyFix plugs form Screwfix at 59p for 100 rather than the £7 for 100 that the price is today for the duo. I noticed they do a Rawlplug red as well. That might be a test for the future that helps to show that whether the cost makes a difference. Just a couple of tests on each of the red plugs all the way up to the Fischer one? Anyway, Thanks again for the effort you went to.

[@grahampollard1036]

Good test. When I use these and the Fischer UX 6 plugs in plaster board cavity walls I drill the smallest hole possible, 5.5 mm in this case and use the smallest recommended diameter fully threaded screw. This helps stop the plug from twisting in the hole as you tighten it, especially in old softer plaster board. I wouldn’t use an impact driver ! and I usually finish tightening the screw by hand.

[@GosforthHandyman]

Yup - on all these test the screws were tightened by hand. 👍

[@ianfrankis8653]

I dont like 'em. I can't get the 8mm to fit an 8mm hole. I'm wasting so many trying to get the final third to enter the wall. It's as if I need a 8.5mm or 9mm drill bit.

[@peterfitzpatrick7032]

Andy...The last time u tested the red plug there was a full moon & a high tide... that would explain the difference ... 🙄🤭 😎👍☘

[@GosforthHandyman]

Think you're on to something! 😂

[@scroggg]

Think he's on something!

[@peterfitzpatrick7032]

😂😂😂😂 😎👍☘️

[@yensabi]

They are good but ridiculously expensive , more market competition needed.......👍 Cheers

[@GosforthHandyman]

Still, 5p ea - 50 holes, £2.50. In the scheme of things not bad. 👍

[@markstrim]

It would be great to know how these test would go with 4mm and 4.5mm diameter screws as well as 5mm. My experience with the Fischer DuoPower is that they work best at a bit below the maximum size screw diameter.

[@GosforthHandyman]

Will try - I'd have to buy even more screws as all my 4 & 4.5 are TurboGold. 😂👍

[@lichansan1750]

Fischer provides information about which screws to use on their website. for the 6x30 it is 4-5 mm screws for wood with at least 35mm length (depending on the head). So your observation is right.

[@_wormlet]

Why do you think that the smaller screw would be better? I would have thought that the bigger screw would make a tighter seal, but you reckon the smaller screw would be better?

[@brucer1220]

In America they have the same name “DuoPower” but have Hillman Group Cincinnati OH but says Made in Germany

[@GosforthHandyman]

Oh wow! Good find! Was always struggling to find these in the States!! That would explain it... 😂👍👊

[@HadesTut0rials]

Hi, I have a heavy p[punchbag I want to use. What plugs should I use for it or would you recommend another bolt fixing? The holds on the bracket will fit a M8 screw.

[@hansdegroot8549]

Great video, thanks for sharing! At 7:07 you speak about the hammer action of your drill. When do you (in person) use that? Doing DIY for about 30 years now, I gradually came to the conclusion that I need the hammer action of a drill only for drilling in concrete or hard natural rock walls (ceilings/floors). For bricks and other light weight construction wall blocks I prefer without. Maybe it goes a little bit slower but in my eyes the hole keeps better the diameter what was aimed for. I'd like to hear your opinion on that.

[@gatorwing6231]

I love these anchors for plaster. Sometimes put in some 5 minute epoxy or insert scrap end of nylon tie between anchor and wall if it spins.

[@deanostones27]

Will these be good enough for hanging curtains up

[@smithjonathan]

Is there a weight limit determined by the plasterboard itself? For example, I guess screwing a TV mounting plate using 4 of these could in theory easily support a 25-30kg TV, but would the downward force cause the plasterboard to crumple or give way, no matter how good the fixing?

[@GosforthHandyman]

I wouldn't use 4 of these for a 30kg TV in plasterboard. You'd really need something more substantial - depends on the bracket. 👍

[@danstheman33]

Depending on the TV and type of mount, often you really need a stud or two, and that is best practice. But a lightweight TV with a flush mount, a stud isn't necessary as long as the wall is in good condition. Metal Snaptoggles are the strongest anchor for that in drywall, though there are other options.

[@martynedmiston2369]

Another great vid, been using them for 6months now and I like them. Interesting what you said about push through fittings, I have little experience doing them. Would appreciate a how to vid if you get the time. Thanks Andy. 👍

[@Growveguk]

Without going back I'm guessing that 300kg on a red plug was with 5.5mm drill bits. As an apprentice electrician back in the day we always ordered 5.5mm masonry bits to get much better fixings with size 4 woodscrews 👍

[@charlesdarwin6349]

Can I remove them or cover over them after my rental ends?

[@MeteoDavidDizzer]

Please where are You from? Your accent is so interesting. :)

[@newbeginnings8566]

Any chance of a test of the Fischer Duotec 10... It's a toggle type wall fixing. Interesting for plasterboard cavity walls.. Here in Europe it's around 13€ for a pack of 10 with screws supplied - the price is a bit of a drawback... But for plasterboard ops it seems very good..

[@anthonysicily5768]

A great tip on the screw type, much appreciated

[@khalilmadovi.]

I have a triple plasterboard wall, in which I need to hang 12kg acoustic panels. There is no cavity behind the plasterboard (it has been filled with rockwool). Which fittings would you recommend I use?

[@keithfoster6000]

Ee bye gum when ah was a wee lad I remember the bolster and rawl plug chisel oh how things change and the plugs were any bit of wood would do, if you were lucky you would get oil impregnated rawl plugs lol

[@GosforthHandyman]

And once the nail rusted in the wood they'd never come out!! 😂👍

[@TheHomeent]

Been using the grey Fisher plugs (even the cheeper copy long before that from dial at the big orange warehouse DIY store and before that at the blue background with white letters starting with W.) So much better than basic plugs due to the square head to stop rotation. Great for brick, block and plasterboard. Not had such consistent results with the red ones. I also tap them just below the surface with solid material as it's easier to plaster over when no longer needed, better than trying to dig them out and they can't be tapped in after use as they are solidly bonded in.

[@karim75sb]

Hi. Any idea when to use Fischer DuoPower and when to use Fischer UX? They are both marketed as "multi-material" wall plugs.

[@zafmahmood5654]

I want to buy the 12 and 14 mm DuoPower plugs.I know you can buy the standard plug sizes but The one I want are not listed any where.I have contacted Fischers and no joy????/Do you know the local distributors.Thanks.Great Video.

[@Lambda-Gamma]

Love all flags on the wall.

[@vintage5532]

I swear by the duo power plugs. I work as an art technician and hang anything from art to sculptures and shelves on walls. I use duo power's all of the time and I've never had any issues what so ever. The only thing I will say is if you're going into plasterboard, be careful if you're using a picture hanging fixing as opposed to a screw which will rotate the plug as you're tightening. I've seen this with an "L bracket" (as demonstrated in one of my video's). It will just make the hole bigger. Great with screws nevertheless.

[@stijnvandamme76]

as an all round , diy plug&screw around the house They are unbeatable in their versatility and ease of use for a none professional like me. Brick hollow brick ytong blocks cinder block never had one come out like the old jagged grey split plugs. Just use appropriate size for the heavier loads. Like a 5x5x5 meter sun shade, that flaps in the wind.. use 10x80 or something like that , and not 6x30.. i mean, it's just common sense innit

[@How2dostuff-]

Thanks for the helpful video Should I use a wood screw when putting up heavy ikea floating tv cabinet and ikea floating cabinets with there brackets into brick wall if so do you recommend 6 or 8 mm Fischer plug and does it mater what type of screws I need to use for a tv bracket for a brick wall

[@davemallen]

Hi great video! How would I apply these results for twin slot shelving uprights. I’m going to be using 65mm duopower plugs with 80 mum screws onto thermalite. Do you think they would hold a weight as it will have multiple fixings along the length? Thanks

[@monstrousgaara]

When I put this in plasterboard. I am using a 6mm wall plug. I use a 5.5mm but the rim never fits flush, even when hammering it down. it looks like it does not want to go in (plastorboard) any recommendations?

[@davesmith9844]

Try Thunderbolt for concrete

[@zdizdi1490]

Hi Friend, Are this fisher with Gasbeton 10cm goods to fix a television 40”? Thx

[@johnw2758]

Very informative video. Could I use the 'push through' method on dot an dab plasterboard (or even battened plasterboard) ie knock the duo plug through to the brickwork or best leave it flush with the plasterboard (longer screws obviously) ?

[@terryrobinson3016]

Hi Andy I need to hang a shower screen over the bath the wall will be tiled with 8mm thick tiles plus the thickness of the plaster board I'm guessing around 12mm . What fixing would you recommend. I would really appreciate your advice as it's doing my head in.

[@fmrsolutions]

What fixing would you recommend for 9.5mm plasterboard?

[@davefoc]

I tried to use drywall plastic anchors in masonry and the ones I had didn't work because they bent over before they were fully inserted. No problem, I thought I'd just go to Home Depot and buy plastic anchors for concrete. I couldn't find any labeled as such. I bought some anchors that looked like the plugs I had used before in masonry but they also were labeled as for drywall, but they worked. It wasn't until I got on the internet and realized that the DuoPower anchors that Home Depot sold were duel purpose . I looked for a review of how well they worked and that's how I happened on this video. Thank you. As an aside, it seems like any anchor that you can get fully embedded into concrete will produce a much stronger connection than is needed for most routine light duty connections to concrete.

[@cliffroe5867]

I will be fastening a metal bracket about 2-3mm thick to a plaster board wall i will be using a duopower plug ,however, the metal bracket will need removing and re attached so, will the screw still tighten into the original fischer duopower 6mm plug?

[@ceet12]

Hi, I wonder if you can go help me?. I've fitted some rawl plug anchors (self screw metal plugs) and in both fittings I've fitted the plaster has crumbled . So I'm assuming I will need to pollyfilla the repair. My question is. Do I pollyfill and skim over with the anchor still left in the wall? Or take it out? If I take it and then Reinsert after I've pollfillered will I run the risk of it the plaster crumbling when the rawl plug self drive goes in again?

[@andrewtanner9985]

Excellent I’ll be using these plugs as I’ve just moved into a timber framed house & I’ll now be using the fully threaded screws thanks to you 👍

[@wozkeo]

are these good to hang kitchen cupboards? is the 27.8kg per plug ? so with 4 corners it can hold over 100kg ?

[@davidwall6020]

instead of hammer drilling through the plasterboard maybe better to use steel bit on normal screwdriver. Hole would be `destroyed` less??

[@hanswurst5616]

In my opinion there is a error in your testing Setup. While you use a angled profile to support the force gauge, you magnify the force in the plug. Even with two angles it is the same problem. A bit like a pinch bar. It should be a one piece part with U-Shape. Enough stiffness is requirred.

[@philhario3640]

This was exceptionally useful. I was curious if you could say a few words about how the Duopower compare to the UX6 plugs, which as I understand are also quite versatile. However the UX6 do require deeper depth.

[@LykeArgy]

i just googled ux6 and i see these are the ones that we get when we install kitchens, they work the best out of any others we used

[@Amir-f6o1z]

Turbo gold screws are the best

[@raysmith1992]

You are a woodwork geek, question won't an impact driver damage the plastic plug as it is effectively a screwdriver with a built in hammer, impact drivers were designed for installing bolts into girders and for the car industry for fitting nuts on steel wheels. They should not be used on alloy wheels as they will damage the wheels. My old woodwork teacher would clip us round the ear if he saw us get near a screw with a hammer. Screws will cut their own thread into what you are screwing into.

[@theartistformallyknownasdi5338]

Impacts give a rotating inpact not linear.

[@GosforthHandyman]

They also give linear impact but if you're careful you can be quite delicate with them. Haven't found they damage fixings but they could certainly strip them if you over-tighten. 👍

[@maxferguson-hook4513]

Great video. Did you think the 6x30 plug would be ok for shelf brackets holding books?

[@majstrujeme8352]

Hello should have used 4.5 mm screws those are supplied in a kit with 6mm plugs 5 works but i think performance suffers in concrete

[@JustinAlexanderBell]

These things are trash for drywall, don't expand anything like the pictures.

[@steveprice9462]

Hi, if you are using 2 plugs and screws to secure an object, presumably the load is spread, so is the load per screw halved? Thanks.

[@laurenth7187]

They are good for old houses with mixed walls, because they come in huge lengths and perform well. Ordinary plugs are a nightmare in this case.

[@qai5er]

Does anyone know what sort of cavity size is needed to use these with a dot dab cavity wall? Thinking about using these to hang vertical blinds in a recess. Limited for options as the plasterboard is attached to a metal beam (dot dab). The plan is to drill some pilot holes to avoid the dabs, but just not sure if the small cavity is sufficient for these to expand behind the plasterboard.

[@paultay23]

Nice one Andy, very interesting...reckon you should have done Shear Tests as well ha ha ........I'm going 😂

[@GosforthHandyman]

Don't start! 😂👍

[@Nagfan09]

I'm no diy expert but had to hang a few things around the house the other day,and this video helped me in selecting good plugs to use,I was very impressed with them!! in your vid you mention when drilling the hole to go the depth of the screw?? is this the general approach for all plugs?? always drill to the depth of screw or did it just pertain to these fischer plugs?? cheers!!

[@connordrescher7301]

Your videos are so helpful and informative ! Thanks so much for the great content. Using the duopowers in my new house I’m renovating and this video was invaluable !

[@RKDTOO]

Will these work well in a gypsum block wall? Do you have any anchor tests in gypsum block?

[@elnath1978]

Did you compare those with the Duoblade? What is the different use case? Also why plugging tru the wood can be useful?