landrover598 Posted July 29, 2007 Share Posted July 29, 2007 Anyone else had issues with nyloc nuts working loose on a landy ? I fitted loads of new bolts with new nyloc nuts to the landy when i built it, and almost every one of them has come loose Some, i have to retorque ever couple of months Would thread lock and or spring washers and nylocs stay tight ? Quote Link to comment Share on other sites More sharing options...
russ3120 Posted July 29, 2007 Share Posted July 29, 2007 Dave when i use new nylocs i always fit a spring washer or thread lock if i cant get a spring washer in. Or you could let them rust and then they will sieze Quote Link to comment Share on other sites More sharing options...
Les Henson Posted July 29, 2007 Share Posted July 29, 2007 Theidea of a nyloc nut is that it negates the need for shake proof washers/spring washers. Just a flat washer usually to spread the load a bit and stop the base of the nut from digging into whatever it's holding. Perhaps they are poor quality or something? I don't recall a nyloc nut working loose. Usually you can spin the nut on a few turns and it goes too tight to continue without a spanner or socket. Les. Quote Link to comment Share on other sites More sharing options...
OilIT Posted July 29, 2007 Share Posted July 29, 2007 I had some 'cheap ones' a while ago which did the same (got them off that darn website!). I stcuk spring washers underneath them - and then paid the normal price for some that did what they are meant to ! Quote Link to comment Share on other sites More sharing options...
smo Posted July 29, 2007 Share Posted July 29, 2007 Nylock nuts by nature of the design shouldnt work loose! Personally i'd replace them with good quality ones if I were you. Quote Link to comment Share on other sites More sharing options...
q-rover Posted July 30, 2007 Share Posted July 30, 2007 What you need are some of these, by the nature of their design, if they start to loosen they actually get tighter. Quote Link to comment Share on other sites More sharing options...
LandyManLuke Posted July 30, 2007 Share Posted July 30, 2007 Never had a problem with nylocs, on LRs or boats. Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted July 30, 2007 Share Posted July 30, 2007 I've never had nylocs come loose either ! It's probably, as the others say, a quality issue. Mo Quote Link to comment Share on other sites More sharing options...
bill van snorkle Posted July 30, 2007 Share Posted July 30, 2007 The best locknuts were the old 3/8'' BSF ones with the built in spring washer on top, but I don't think they were ever made in UNF or Metric sizes. Nylocs apparently are designed to be used only once, and I do always fit new ones to the propshafts of clients vehicles, but being a cheapskate myself I re use them on my own vehicle after stakng the top of the nut with a hammer and blunt chisel. I find that they hold better than new ones after doing that. Bill. Quote Link to comment Share on other sites More sharing options...
callum Posted July 30, 2007 Share Posted July 30, 2007 they weren't from screwfix were they. i bought self tappers from there once, they had about the same hardness as plasticine. next time i shall pay the extra and get proper ones. anyone got any recommendation of suppliers of sets like screwfix, but actually made of metal? could do with gaathering an assortment of blots and certainly shall not be buying those from screwfix. Quote Link to comment Share on other sites More sharing options...
BLACK CAB Posted July 30, 2007 Share Posted July 30, 2007 Try using AERO STIFF NUTS , these are available in metric thread...... up to M12 I think and also in stainless. I have only ever really used them for high temp applications. As others have previously said quality Nyloc's should not work loose. Quote Link to comment Share on other sites More sharing options...
M0EAF Posted December 1, 2007 Share Posted December 1, 2007 It seems to be large amounts of bad quality nuts and bolts are coming in from China. They can make them look convincing but they are C**p, its happening with car spares as well Quote Link to comment Share on other sites More sharing options...
Daan Posted December 2, 2007 Share Posted December 2, 2007 the best locknuts, by a long way are k-nuts. They are smaller in spanner size, 12 mm for an m10 from memory with a flange and are deformed to slightly oval rather than round. You get them in metric and imperial, costing around 1 pound each depending on size. I use them on my exhaust and on places were spanner space is tight. daan Quote Link to comment Share on other sites More sharing options...
cosworth Posted December 2, 2007 Share Posted December 2, 2007 the best locknuts, by a long way are k-nuts. They are smaller in spanner size, 12 mm for an m10 from memory with a flange and are deformed to slightly oval rather than round. You get them in metric and imperial, costing around 1 pound each depending on size. I use them on my exhaust and on places were spanner space is tight.daan these are fantastic. but really only used on exhausts for some reason Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted December 2, 2007 Share Posted December 2, 2007 Don't use clevelock nuts for steelwork. They'll go on easily and won't loosen. Getting them off, however is an interesting experience Mo Quote Link to comment Share on other sites More sharing options...
David Sparkes Posted December 2, 2007 Share Posted December 2, 2007 Nyloc, Cleveloc, Aerotight, are explained at http://www.boltscience.com/pages/glossary.htm K-nut is not mentioned for some reason, but perhaps it is a slightly alternative version of one of the other types defined in the glossary. These people equate k-nut with KEPS (mentioned in the Glossary). This equivalence may be a mistake on their behalf. http://www.stlogistics.com.cn/product_view.asp?id=687 They describe it in detail as a nut with a shakeproof washer http://www.hssales.com/locking_nut.htm#Keps Merlin Motorsport show the K-nut more clearly as the 'reduced hex with large flange' style referenced earlier by Daan and cosworth. http://preview.tinyurl.com/33tc8u Cheers Quote Link to comment Share on other sites More sharing options...
Daan Posted December 2, 2007 Share Posted December 2, 2007 these are fantastic. but really only used on exhausts for some reason The reason must be the 1 pound price tag; you can buy probably a box wth a hundred nlyocs for that. K nuts can be used more than once though. I buy them here: www.tridentracing.co.uk/ Daan Quote Link to comment Share on other sites More sharing options...
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