TEAMYAKIMA Posted February 25, 2020 Share Posted February 25, 2020 I want to buy some of these but don't know what they're called.... thanks for any help Link to post Share on other sites More sharing options...
jcm@gwr Posted February 25, 2020 Share Posted February 25, 2020 One name that they are known by, is 'Tee' nuts. 1 Link to post Share on other sites More sharing options...
RMweb Premium Dave John Posted February 25, 2020 RMweb Premium Share Posted February 25, 2020 Used some on a job recently. https://www.screwfix.com/p/easyfix-4-pronged-tee-nut-m8-x-11mm-10-pack/47225 Link to post Share on other sites More sharing options...
TEAMYAKIMA Posted February 26, 2020 Author Share Posted February 26, 2020 6 hours ago, Dave John said: Used some on a job recently. https://www.screwfix.com/p/easyfix-4-pronged-tee-nut-m8-x-11mm-10-pack/47225 Hello Dave Many thanks. The reason I posted the question was that I went into my local Screwfix yesterday and spent a good 5 minutes describing them to two different members of staff with absolutely no luck - now I have the details I'll have another go! Ironically was in Glasgow last weekend with an N gauge WW2 layout at the Glasgow show - did you go? My own layout will be going next year. 1 Link to post Share on other sites More sharing options...
RMweb Gold Enterprisingwestern Posted February 26, 2020 RMweb Gold Share Posted February 26, 2020 https://en.wikipedia.org/wiki/Threaded_insert I now primarily use these instead of Tee nuts, they have the advantage of being securely fastened into the wood and are better when being constantly assembled and dismantled. Mike. 1 2 1 Link to post Share on other sites More sharing options...
RMweb Premium Dave John Posted February 26, 2020 RMweb Premium Share Posted February 26, 2020 I did, and really enjoyed Remagen. I have watched it develop on here, good to see it close up at last. Link to post Share on other sites More sharing options...
Talltim Posted February 26, 2020 Share Posted February 26, 2020 I’d query whether thy attach any more securely than T-nuts, but I’ve had a few situations where it has been hard to get the clearance to push the prongs in and a threaded insert would be far easier 1 Link to post Share on other sites More sharing options...
RMweb Gold Enterprisingwestern Posted February 26, 2020 RMweb Gold Share Posted February 26, 2020 1 minute ago, Talltim said: I’d query whether thy attach any more securely than T-nuts, but I’ve had a few situations where it has been hard to get the clearance to push the prongs in and a threaded insert would be far easier Considerably more securely as they are screwed into a hole, to make them more captive then maybe a smear of epoxy or whatever, but as they are tightly wound in with an Allen key then they ain't goin' nowhere, not had one go MIA yet and not just on layouts. Mike. Link to post Share on other sites More sharing options...
jcm@gwr Posted February 26, 2020 Share Posted February 26, 2020 11 minutes ago, Enterprisingwestern said: Considerably more securely as they are screwed into a hole, to make them more captive then maybe a smear of epoxy or whatever, but as they are tightly wound in with an Allen key then they ain't goin' nowhere, not had one go MIA yet and not just on layouts. Mike. You could use the glue on the Tee nuts as well, also I would tend to use the tee nuts the opposite way round to usual, ie so they can be pulled into the wood as you tighten them. Link to post Share on other sites More sharing options...
Talltim Posted February 26, 2020 Share Posted February 26, 2020 1 minute ago, jcm@gwr said: You could use the glue on the Tee nuts as well, also I would tend to use the tee nuts the opposite way round to usual, ie so they can be pulled into the wood as you tighten them. That how I thought you were supposed to use them! 2 Link to post Share on other sites More sharing options...
jcm@gwr Posted February 26, 2020 Share Posted February 26, 2020 Just now, Talltim said: That how I thought you were supposed to use them! Correct, but it's amazing how many times I've seen them put in 'from the front'! Link to post Share on other sites More sharing options...
RMweb Gold Enterprisingwestern Posted February 26, 2020 RMweb Gold Share Posted February 26, 2020 2 minutes ago, jcm@gwr said: You could use the glue on the Tee nuts as well, also I would tend to use the tee nuts the opposite way round to usual, ie so they can be pulled into the wood as you tighten them. That's the way you are supposed to use tee nuts, the issue is that over time, the constant tightening and loosening and inserting of the bolt displaces the prongs. If gluing, epoxy is best, but be careful where the glue goes. Mike. Link to post Share on other sites More sharing options...
jcm@gwr Posted February 26, 2020 Share Posted February 26, 2020 Just now, Enterprisingwestern said: That's the way you are supposed to use tee nuts, the issue is that over time, the constant tightening and loosening and inserting of the bolt displaces the prongs. If gluing, epoxy is best, but be careful where the glue goes. Mike. That would suggest they weren't fitted securely/correctly in the first place, glueing would solve that. Also, I would have thought that, unless you are using hardwood, threaded inserts would be more likely to work loose over time, softwood just isn't that strong in that situation. Link to post Share on other sites More sharing options...
Talltim Posted February 26, 2020 Share Posted February 26, 2020 What I really want is some sort of sprung over-centre cam twist lock plunger thing, but either they don’t exist, or my google-fu is lacking Link to post Share on other sites More sharing options...
doilum Posted February 26, 2020 Share Posted February 26, 2020 I have had mixed results with tee nuts obtained from the usual DIY sources. One solution is to sandwich them with a piece of thin ply or hardboard. For joining baseboards I use an M8 nut welded to a50mm repair washer. Three small holes in the washer allow it to be secured with small screws. Matching washers without nuts and a slightly enlarged centre hole are used on the other board. Location is achieved by pattern makers dowels. Link to post Share on other sites More sharing options...
doilum Posted February 26, 2020 Share Posted February 26, 2020 1 minute ago, Talltim said: What I really want is some sort of sprung over-centre cam twist lock plunger thing, but either they don’t exist, or my google-fu is lacking A bit like the dzus fasteners used in old school aircraft and motor sports? Link to post Share on other sites More sharing options...
Damo666 Posted February 26, 2020 Share Posted February 26, 2020 9 minutes ago, Talltim said: What I really want is some sort of sprung over-centre cam twist lock plunger thing, but either they don’t exist, or my google-fu is lacking Is this what you are thinking of? Image via Amazon. (Usual disclaimer, I neither make these products nor own Amazon) Link to post Share on other sites More sharing options...
RMweb Gold Enterprisingwestern Posted February 26, 2020 RMweb Gold Share Posted February 26, 2020 1 hour ago, jcm@gwr said: That would suggest they weren't fitted securely/correctly in the first place, glueing would solve that. Also, I would have thought that, unless you are using hardwood, threaded inserts would be more likely to work loose over time, softwood just isn't that strong in that situation. The issue is that they weren't originally made to be dismantled regularly so the problem of them coming loose wouldn't occur in their original manifestation, generally furniture manufacture, where they were used to provide a means of bolting assemblies together in blind boxes. Softwood is plenty firm enough to hold a threaded insert if the correct sized hole is drilled, you're not trying to hold an aircraft down with the fixing, just align baseboards. Yet again, like Swann Morton knives, it's a case of modellers not using the materials in a way that they are intended. Mike. 2 Link to post Share on other sites More sharing options...
RMweb Gold Worsdell forever Posted February 26, 2020 RMweb Gold Share Posted February 26, 2020 1 hour ago, Enterprisingwestern said: The issue is that they weren't originally made to be dismantled regularly so the problem of them coming loose wouldn't occur in their original manifestation, generally furniture manufacture, where they were used to provide a means of bolting assemblies together in blind boxes. Softwood is plenty firm enough to hold a threaded insert if the correct sized hole is drilled, you're not trying to hold an aircraft down with the fixing, just align baseboards. Yet again, like Swann Morton knives, it's a case of modellers not using the materials in a way that they are intended. Mike. Oh, I don't know, plenty of modellers will tell you how they nearly cut their finger ends off... 2 1 Link to post Share on other sites More sharing options...
RMweb Gold Enterprisingwestern Posted February 26, 2020 RMweb Gold Share Posted February 26, 2020 7 hours ago, Worsdell forever said: Oh, I don't know, plenty of modellers will tell you how they nearly cut their finger ends off... Or, from personal activity, a three inch scar on my arm! Mike. Link to post Share on other sites More sharing options...
Nearholmer Posted February 26, 2020 Share Posted February 26, 2020 (edited) 12 hours ago, Talltim said: What I really want is some sort of sprung over-centre cam twist lock plunger thing, but either they don’t exist, or my google-fu is lacking Quick-release bicycle wheel axle skewers. About £3 each for cheap ones. Edited February 26, 2020 by Nearholmer Link to post Share on other sites More sharing options...
Godders Posted February 26, 2020 Share Posted February 26, 2020 Have a look at these: Cheap and accurate https://button-fix.com/ https://www.ironmongerydirect.co.uk/product/button-fix-type-1-flush-fit-and-button-for-countersunk-woodscrew-pack-12-955650 Godders Link to post Share on other sites More sharing options...
Talltim Posted February 27, 2020 Share Posted February 27, 2020 12 hours ago, Nearholmer said: Quick-release bicycle wheel axle skewers. About £3 each for cheap ones. That’s half of the sort of mech I was thinking of, but they wouldn’t be suitable on their own as you’d either need a slot in the baseboard ends or to take the nut off to put it through the hole, it which case you might as well use a normal nut and bolt Might do a quick sketch tonight as it’s hard to do in words Link to post Share on other sites More sharing options...
KeithMacdonald Posted February 27, 2020 Share Posted February 27, 2020 On 26/02/2020 at 08:36, Talltim said: I’d query whether thy attach any more securely than T-nuts, but I’ve had a few situations where it has been hard to get the clearance to push the prongs in and a threaded insert would be far easier Err, is that the same as these? https://www.screwfix.com/p/insert-nuts-type-d-m6-x-13mm-50-pack/59937 Link to post Share on other sites More sharing options...
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