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Tapered or parallel plugs for screws in masonry?
On Fri, 13 May 2005 10:09:41 +0100, Bill Woods
wrote: Which sort of wallplug for brick/masonry do posters here prefer? My personal preference was for the plastic 'stick' type plug that you had to cut to length yourself, like the one two-thirds of the way down this page: http://www.readersdigest.co.uk/diy/w...32_233_234.htm I liked them because you could use a longer plug/screw if the wall was a bit dodgy. Haven't seen them for a few years, though. Anyone know if any of the sheds stock them? sponix |
On Fri, 13 May 2005 10:34:42 +0100, --s-p-o-n-i-x--
wrote: I liked them because you could use a longer plug/screw if the wall was a bit dodgy. Slice the flange off another wallplug and shove that in afterwards. Or else just poke them down with a drillbit. Unless you're using huge screws, you only need one plug's length of grip, you just need it further in where the wall is stable. Haven't seen them for a few years, though. Anyone know if any of the sheds stock them? I saw them recently, but the price was ridiculous. I also saw "Rawlplug compound", or at least a modern version of it recently. A compound-filled paper "coffee filter" that you wet, then shoved down the hole. -- Cats have nine lives, which is why they rarely post to Usenet. |
Hi Bill
I ask this because a lot of products I buy which need to be fixed on the wall come with two screws and two "conical" wallplugs. Rule number one. Unpack product, find screws & plugs supplied, throw in bin, use some proper ones. Dave |
Bill Woods wrote:
Which sort of wallplug for brick/masonry do posters here prefer? [... snipped ...] I ask this because a lot of products I buy which need to be fixed on the wall come with two screws and two "conical" wallplugs. Personally, I can't really see how I drill a snug hole for a conical plug. In which circumastances I would want to use such a plug? Am I overlooking a use which this sort of wallplug is designed for? The end of the cone expands as the screw is put in. Personally, I think the rolls-royce of wall plugs is the Plasplug. That plus a matchstick to bulk it up for narrow screws is great. It has thin fins so it doesn't rotate in the hole, it is flexible enough to allow some variation in screw size, and works every time for me. All others seem to bring out my ham fistedness. Phil |
"Bill Woods" wrote in message ... Which sort of wallplug for brick/masonry do posters here prefer? An off-cut of wood trimmed to fit with a Swiss Army knife, hammered in until the bit sticking out seriously starts to mushroom and finally chiselled off flush with the wall. Colin Bignell |
Bill Woods wrote:
Which sort of wallplug for brick/masonry do posters here prefer? (1) a plastic wallplug which looks like a sort of cylinder (and looks parallel when seen in profile). For example: http://www.chard-design.co.uk/images/plastic_plugs.gif That is what I use mostly... (they still taper a little) I ask this because a lot of products I buy which need to be fixed on the wall come with two screws and two "conical" wallplugs. Personally, I can't really see how I drill a snug hole for a conical plug. In which circumastances I would want to use such a plug? Am I overlooking a use which this sort of wallplug is designed for? It is actually quite difficult to drill a hole that is not slightly tapered - any latteral movement on the body of the drill as you sink the hole will tend to widen the mouth of the hole a bit. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
Which sort of wallplug for brick/masonry do posters here prefer?
I just use whatevers to hand, whatever fits. They all seem to work ok, whatever theyre made of, whatever shape. Some are less tolerant than others though, some are fine with a wide range of screws, some it has to be just right or they dont bite enough. The onse with a non-split round outer are fussier. Slice the flange off another wallplug and shove that in afterwards. thats what i do with soft walls. Its remarkable how much of a problem a 0.25mm flange is, the slice off is essential. The screw sizes can be completely ignored, I've happily used decent size screws on the smallest of plugs. The final size is going to be plug wall width + screw size minus a bit of compression, regardless of what the plug designer thinks. I also saw "Rawlplug compound", or at least a modern version of it recently. A compound-filled paper "coffee filter" that you wet, then shoved down the hole. how do those work? do they expand when wet, and fill the hole? I coudnt see how shoving a bit of paper down the hole could work. Rule number one. Unpack product, find screws & plugs supplied, throw in bin, use some proper ones. and wonder how they ever thought that 5kg could be supported on 2x 1" scerws that dont even get through the plaster... what delusional people pick those screws? Have they been had for personal injury claims yet? An off-cut of wood trimmed to fit with a Swiss Army knife, hammered in until the bit sticking out seriously starts to mushroom and finally chiselled off flush with the wall. Thin dowel is workable too. For folks that cant get by without the old long sticks, those work quite well. Pine dowel is a bit softer but its still pretty good. Not as easy to trim as a matchstick though. When I was plugging 6" coach screws I had to use wood and knife, never seen ready made plugs that size. I suppose I could have sawn off the end of the broom handle and used that. Do those 15' screws come with rawlplugs? NT |
In article , Andy Dingley
writes I also saw "Rawlplug compound", or at least a modern version of it recently. A compound-filled paper "coffee filter" that you wet, then shoved down the hole. Recently found some of the old stuff in my dad's shed, ingredients: Asbestos Fibre 100%, I remember him mixing it with a gob of spit in his hand when making fixings, ah, those were the coughcoughspit days :-) -- fred |
Recently found some of the old stuff in my dad's shed, ingredients: Asbestos Fibre 100%, I remember him mixing it with a gob of spit in his hand when making fixings, ah, those were the coughcoughspit days :-) And what did he die of? I'll bet it wasn't lung cancer. --Goedjn |
In article , Goedjn
writes Recently found some of the old stuff in my dad's shed, ingredients: Asbestos Fibre 100%, I remember him mixing it with a gob of spit in his hand when making fixings, ah, those were the coughcoughspit days :-) And what did he die of? I'll bet it wasn't lung cancer. Correct :-) -- fred |
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Lobster wrote:
wrote: I also saw "Rawlplug compound", or at least a modern version of it recently. A compound-filled paper "coffee filter" that you wet, then shoved down the hole. how do those work? do they expand when wet, and fill the hole? I coudnt see how shoving a bit of paper down the hole could work. I spotted these in Wickes a while ago, and picked up a packet intended for backup use for when I have a plug/hole that 'goes wrong' on me, but haven't had to open it yet! The paper discs are impregnated with a plaster-like material which goes off really quickly when it gets wet, so it's not like bunging a bit of soggy newspaper down the hole. David I take it this stuff must expand hugely once in hole, then set in second before you screw? Maybe I'll have to buy some, still cant get my head round it NT |
Dave Liquorice wrote:
On 14 May 2005 04:27:35 -0700, wrote: I take it this stuff must expand hugely once in hole, then set in second before you screw? Maybe I'll have to buy some, still cant get my head round it No, it's just an bit of open weave cloth impregnated with "polyfilla". I suspect it only really works for holes that are not seriously over size, ie one from which a plug has pulled out of and a fresh plug rotates when you try and put in the screw. Ahhh, so it doesnt replace the plug, you wrap it round the plug? If so, whats the point? Think im as confused as ever! NT |
Which sort of wallplug for brick/masonry do posters here prefer?
An off-cut of wood trimmed to fit with a Swiss Army knife, hammered in until the bit sticking out seriously starts to mushroom and finally chiselled off flush with the wall. Colin Bignell I'm with Colin, particularly where a heavy load is concerned - a good plug of wood, tight enough in the hole to require hammering in with a degree of force, will hold anything! |
On 14 May 2005 13:58:55 -0700, wrote:
Ahhh, so it doesnt replace the plug, you wrap it round the plug? I think you are supposed to wrap it around the screw, then remove the screw before the stuff finally sets. I've never got past seeing them in the sheds, seeing the price and thinking "How much! For that...". Bit of polyfilla and scrap of bandage would probably work just as well. If so, whats the point? Think im as confused as ever! I don't think you have ever encountered a problem hole. One where the substrate can't take the stress's imposed by the plug. By filling the gaps with a filla you distribute the load better and the fixing is less likely to fail. -- Cheers Dave. pam is missing e-mail |
In article , davidlobsterpot601
@hotmail.com says... wrote: I also saw "Rawlplug compound", or at least a modern version of it recently. A compound-filled paper "coffee filter" that you wet, then shoved down the hole. how do those work? do they expand when wet, and fill the hole? I coudnt see how shoving a bit of paper down the hole could work. I spotted these in Wickes a while ago, and picked up a packet intended for backup use for when I have a plug/hole that 'goes wrong' on me, but haven't had to open it yet! The paper discs are impregnated with a plaster-like material which goes off really quickly when it gets wet, so it's not like bunging a bit of soggy newspaper down the hole. David Change the preposition and it sounds like the perect answer for Montezuma's Revenge -- Paul Mc Cann |
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Dave Liquorice wrote:
On 14 May 2005 13:58:55 -0700, wrote: I don't think you have ever encountered a problem hole. Now why did I buy 5kg of resin... OK so these things work like resin, but are presumably a much lower performance version, since polyfilla doesnt compare too good to epoxy. And since theyre water based, not sure how quick they go off. I get the feeling polyester resin will continue to get used for quick holes. If I can ever think of a use for them I may get some, but Im stil finding it hard to imagine any app where theyre better. If I were travelling out to jobs with minimal kit I would be tempted. NT |
On 15 May 2005 09:18:22 -0700, wrote:
I don't think you have ever encountered a problem hole. Now why did I buy 5kg of resin... 'Yer average DIY'er wouldn't use a Kg of resin before it had gone manky. Bit of cloth and polyfilla is cheap, albeit probably less effective, alternative. And since theyre water based, not sure how quick they go off. Minutes, though full strength takes time as with resin... -- Cheers Dave. pam is missing e-mail |
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