Paudman Posted January 30, 2015 Share Posted January 30, 2015 The top bracket-bolt aperture is threaded on all my dynamos but not one takes a standard UNF or metric threaded bolt; not that I can find anyway. It’s the one that goes through the sliding belt adjuster that connects to the water pump housing. It’s a coarse thread and I can’t find any kind of match that won’t wring the threads - are these screws / bolts available from suppliers? Quote Link to comment Share on other sites More sharing options...
Paudman Posted January 30, 2015 Author Share Posted January 30, 2015 I’ve just found that Canleys have it listed as a UNC setscrew... so why on earth will none of mine fit? Brand new dynamo, never fitted to anything else….. grrr. Where’s the angry emoticon? Quote Link to comment Share on other sites More sharing options...
Velocita Rosso Posted January 30, 2015 Share Posted January 30, 2015 Should be UNC, its def not UNF or MetricTry running a tap through Quote Link to comment Share on other sites More sharing options...
nang Posted January 30, 2015 Share Posted January 30, 2015 Drill it out and use a standard bolt spring washer and nut.Tony. Quote Link to comment Share on other sites More sharing options...
piman Posted January 30, 2015 Share Posted January 30, 2015 Hello Tony, that's a retrograde step surely? Yes, it will work but then needs two spanners rather than one, 5/16" UNC screws are readily available.Alec Quote Link to comment Share on other sites More sharing options...
nang Posted January 31, 2015 Share Posted January 31, 2015 Hi Alec,I've do this a couple of times as the thread had been stripped and it was the easy way out. >:(Tony. Quote Link to comment Share on other sites More sharing options...
piman Posted January 31, 2015 Share Posted January 31, 2015 Hello Tony, that's a different matter.Alec Quote Link to comment Share on other sites More sharing options...
Paudman Posted February 2, 2015 Author Share Posted February 2, 2015 I’ll order a couple from Canleys, as I hate drilling things out….. one to use, and one to lose…! Quote Link to comment Share on other sites More sharing options...
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