Having trouble with a nut, bolt, screw or screw-hole thread?
It’s rare on the agricultural machinery we supply but it can happen and when it does, it’s infuriating. You usually discover it for the first time when you’re just finishing off a job and discover that the very last screw or bolt just won’t fully tighten anymore.
A variation on this theme is when the first section of a thread has somehow been damaged and you can’t even get it to bite into the nut or screw hole.
People doing jobs have seen this one for centuries and there are all sorts of potential solutions, depending upon what’s gone wrong and what type of thing ‘it’ is.
One of the oldest tricks in the book is to wrap some thread or tape around the screw or bolt, then try and tighten it. That’s amazingly effective sometimes but it’s probably not great in larger applications or where safety (e.g. moving machinery) is concerned. High heat environments also tend to be a problem with this type of ‘quick fix’.
Another thing you can do, at least where wood is concerned, is to knock-in a plug of some sort and let the screw drive itself in and self-thread.
The professional approach would be to use a tap and die set to re-thread the screw/bolt/nut concerned. This isn’t hard but it’s not easy either and it can be something of an acquired ‘knack’. You’ll need to make sure that everything is cut at the perpendicular (generally) and use good cutting oil.
Of course, you might be lucky and have a decent lathe with a screw-cutter attachment, in which case it’ll make life a lot easier than doing it by hand.
Maybe the easiest solution all round though is to pop in and see us. We might be able to help – and that’s what we’re here for!
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