ToughButterCup Posted September 25, 2017 Share Posted September 25, 2017 Shuttering came down this weekend: well, most of it. The shuttering was screwed onto the wall by gorillas. Some joker had given them several boxes of screws with which to play: here's one of each type. And, being fun-loving gorillas, they managed to burr at least 50% of the heads sink the screw so deep into the shuttering the screw was invisible destroy the heads put the screws deep into the wood at an angle so that it was possible to see that there was a screw in the wood, but it was impossible to tell the type of screw hid the screw behind a thin scrim of concrete I bought a proper set of (Na! Bosch naturlich!) screw-driver bits. I armed myself with patience and good humour. I balanced happily on a proper scaffolding tower. And by tea time on Saturday I had been transformed into a furious, fulminating Dervish, happily ready to rip the arms off the nearest gorilla and beat it to death with the soggy ends. I am I alone in this sentiment? Link to comment Share on other sites More sharing options...
MikeSharp01 Posted September 25, 2017 Share Posted September 25, 2017 I guess they had no stake in getting them out so didn't worry about putting them in such that they could be extracted. That is quite a nice selection you have there though. Some are wood (L-R) 2,3,& 4, some for concrete 1 one for roofing material 5 and I cannot identify 6 but i must be a high torque application as it uses a torx head drive like the first. Plus, it looks like you have rested them on a very neat tea cloth ( dish / towel). Link to comment Share on other sites More sharing options...
daiking Posted September 25, 2017 Share Posted September 25, 2017 High Quality British Construction Link to comment Share on other sites More sharing options...
Jeremy Harris Posted September 25, 2017 Share Posted September 25, 2017 (edited) For the Posi screws I've found that it pays to splash out on the diamond-coated Wera bits and an impact screwdriver. Not cheap bits, but they last longer and, more importantly, they grip into the screw head, with far less chance of ramping out. There's a world of difference between driving screws with an ordinary drill/driver and a proper impact driver, too. As I already had a fair few Makita tools, I just bought a bare body impact driver, probably the second most useful cordless tool I've ever bought. Edited September 25, 2017 by JSHarris Link to comment Share on other sites More sharing options...
ToughButterCup Posted September 25, 2017 Author Share Posted September 25, 2017 So folks, is there any way of removing screws which have (say) had the slot stripped or otherwise abused? I ended up trying to screw them in a tiny bit first. Some Torcx screws were in so deep and hard that I broke two driver bits. Please tell me it's not just me, tell me there is no simple answer.... Link to comment Share on other sites More sharing options...
MikeSharp01 Posted September 25, 2017 Share Posted September 25, 2017 No easy way I have ever come across. Do you have a multitool? If so you can probably cut the wood away from around the screw head and then grip the head with a pair of mole grips such as these. You can then twist them out. One thing to remember about these screws, well most of them, is that the are hard and can be snapped off - they don't like bending, by accident or perhaps for you, on purpose. Link to comment Share on other sites More sharing options...
dpmiller Posted September 25, 2017 Share Posted September 25, 2017 If you're breaking Torx bits that easily, thay aint good'uns. Link to comment Share on other sites More sharing options...
ToughButterCup Posted September 25, 2017 Author Share Posted September 25, 2017 8 minutes ago, dpmiller said: If you're breaking Torx bits that easily, thay aint good'uns. Broke two... Link to comment Share on other sites More sharing options...
Onoff Posted September 25, 2017 Share Posted September 25, 2017 You could try something like this: https://www.aldi.co.uk/damaged-screw-remover-set/p/094899148133700?gclid=EAIaIQobChMI-8ak47bA1gIVzbXtCh2MMAUMEAQYASABEgK7L_D_BwE You run the cordless ccw and it bites into the mullered head is the idea. Sometimes they just strip the head even more. You could...drill say a 50mm hole in a bit of scrap ply. Centre that over the problem screw and attach to the shuttering. Then use the Starrett sans the pilot to remove the section of shuttering the screws in. The scrap bit keeps the cutter on centre. Then get some moles on the screw. Even if it shears off at least it'd let you remove the sheets save for little rounds here and there which you could take off later. Link to comment Share on other sites More sharing options...
ToughButterCup Posted September 25, 2017 Author Share Posted September 25, 2017 Good. Now I have a couple more ideas to get to 'grips' with the problem. Lesson: don't let gorillas screw with your screws. Link to comment Share on other sites More sharing options...
Crofter Posted September 25, 2017 Share Posted September 25, 2017 I swear there must be some secret rule that if you know the difference between a pozi and a philips, you're not allowed to become a 'proper' tradesman. 1 Link to comment Share on other sites More sharing options...
Ferdinand Posted September 25, 2017 Share Posted September 25, 2017 29 minutes ago, Onoff said: You could try something like this: https://www.aldi.co.uk/damaged-screw-remover-set/p/094899148133700?gclid=EAIaIQobChMI-8ak47bA1gIVzbXtCh2MMAUMEAQYASABEgK7L_D_BwE You run the cordless ccw and it bites into the mullered head is the idea. Sometimes they just strip the head even more. You could...drill say a 50mm hole in a bit of scrap ply. Centre that over the problem screw and attach to the shuttering. Then use the Starrett sans the pilot to remove the section of shuttering the screws in. The scrap bit keeps the cutter on centre. Then get some moles on the screw. Even if it shears off at least it'd let you remove the sheets save for little rounds here and there which you could take off later. That's Aldi. @Onoff wants his welder and a profit. Link to comment Share on other sites More sharing options...
ToughButterCup Posted September 25, 2017 Author Share Posted September 25, 2017 Only gorillas will tell you the difference, @Crofter. I'd like to know more about the secret process by which manufacturers get to decide why there are about a dozen or more pozi sizes - 0h yeah, that's be the one about the profit motive: make so many different types it makes it worth the manufacturers while to produce bits and bit extensions and long-tail bits and short tail bits and put them in a box so that @Onoff (I use his name as code for proper trades folk - other proper trades folk are available) is forced to buy more than he needs Link to comment Share on other sites More sharing options...
Lesgrandepotato Posted September 25, 2017 Share Posted September 25, 2017 Stick a jemmy down the back and rip it down? Would the lads that put it up have take them out? I suspect not.... Link to comment Share on other sites More sharing options...
ToughButterCup Posted September 25, 2017 Author Share Posted September 25, 2017 That's what we did in the end: never mind a jemmy ..... two 'king great big crow bars .... 1 Link to comment Share on other sites More sharing options...
MikeSharp01 Posted September 25, 2017 Share Posted September 25, 2017 52 minutes ago, Crofter said: I swear there must be some secret rule that if you know the difference between a pozi and a philips, you're not allowed to become a 'proper' tradesman. SH 1 T you mean they are different - its OK though cos I must be a proper tradesman. Link to comment Share on other sites More sharing options...
ToughButterCup Posted September 25, 2017 Author Share Posted September 25, 2017 Try explaining that to a wife who's never picked up a screwdriver before, and, looking at the box of screwdriver bits says '...Must have been designed by a man... Nice work if you can get it... what is this nonsense about.... job creation?...' Link to comment Share on other sites More sharing options...
MikeSharp01 Posted September 25, 2017 Share Posted September 25, 2017 41 minutes ago, recoveringacademic said: a dozen or more pozi sizes Its all about the amount of torque they expect you to apply, it has a standard - there are only 5 sizes, and the design should reduce the cam out potential, against Phillips head for instance, at normal torques. Most of the screws I have brought recently actually came with a free driver bit of the correct size! Link to comment Share on other sites More sharing options...
ToughButterCup Posted September 25, 2017 Author Share Posted September 25, 2017 1 minute ago, MikeSharp01 said: [...] at normal torques. [...] Whasat? Gorilla Torque? Frankly, I'd like to tighten some of their nuts for them, and then walk away. Link to comment Share on other sites More sharing options...
Onoff Posted September 25, 2017 Share Posted September 25, 2017 (edited) Karma with a dash of serendipity I call it! Just to show I'm not biased: https://www.screwfix.com/p/pro-grabit-screw-bolt-remover-set-2-piece-set/2951v EDIT: £90 and counting! Edited September 25, 2017 by Onoff 1 Link to comment Share on other sites More sharing options...
jack Posted September 25, 2017 Share Posted September 25, 2017 30 minutes ago, MikeSharp01 said: SH 1 T you mean they are different - its OK though cos I must be a proper tradesman. And there's a slightly different Japanese standard as well, from memory. I only learned there was such a thing as a pozi drive screw a few years ago. For many years I'd just assumed that the extra little wedges on that odd screwdriver I had in my toolbox were just a design feature! Link to comment Share on other sites More sharing options...
Jeremy Harris Posted September 25, 2017 Share Posted September 25, 2017 1 hour ago, Crofter said: I swear there must be some secret rule that if you know the difference between a pozi and a philips, you're not allowed to become a 'proper' tradesman. There is, except for some oddball, usually Chinese made, screws that don't follow the standard. Posi screw heads should have embossed lines between the slots, Phillips screws don't. Also, Posi screws have a different angle and a flat bottom to the cross. The Wiki page has a quick ID chart on the right: https://en.wikipedia.org/wiki/List_of_screw_drives Link to comment Share on other sites More sharing options...
Onoff Posted September 25, 2017 Share Posted September 25, 2017 1 hour ago, Ferdinand said: That's Aldi. @Onoff wants his welder and a profit. Hark at the Discount King! Link to comment Share on other sites More sharing options...
jack Posted September 25, 2017 Share Posted September 25, 2017 26 minutes ago, JSHarris said: There is, except for some oddball, usually Chinese made, screws that don't follow the standard. The Chinese made ones may be the Japanese standard I mentioned before. You run into them now and then on electrical equipment. Another useful tip (pardon the pun) for recognising a pozidriv tip - as well as the flatter end, they have triangular wedges in the main recesses of the cross. Link to comment Share on other sites More sharing options...
ToughButterCup Posted September 25, 2017 Author Share Posted September 25, 2017 1 hour ago, JSHarris said: [...] The Wiki page has a quick ID chart on the right: https://en.wikipedia.org/wiki/List_of_screw_drives Thank you thank you thank you. Such a simple thing can make you feel so THICK , to have it explained simply is such a relief. Link to comment Share on other sites More sharing options...
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