[Healeys] What Thread?

Kees Oudesluijs coudesluijs at chello.nl
Sun Dec 20 03:50:01 MST 2020


If UNF7/16 is just to large it may be metric, probably M10. In that case 
the stud's outside diameter should be just shy of 10,0mm or at most 
10,0mm when it is shoddily cut.

Kees Oudesluijs


Op 20-12-2020 om 11:12 schreef john harper:
> Mike
>
> Both treads should be BSF. The problem is that not enough attention is 
> given to detail. Suppliers cannot bother to get things correct but 
> they know they have used an incorrect thread or otherwise, they would 
> not have supplied the nuts. The treads are most likely metric.
>
> Rgds
>
> On Sun, 20 Dec 2020 at 09:19, Michael MacLean <rrengineer.mike at att.net 
> <mailto:rrengineer.mike at att.net>> wrote:
>
>     The threaded pillar in the picture was purchased from
>     Ahead4Healeys.  This is the pillar for the generator adjusting
>     bracket.  It came without the nuts needed for the ends.  I can't
>     figure out what type of threads these are.  I bought a 1/2" BSF
>     nut and a 7/16 BSF nut for it.  Problem is both of those nuts are
>     too loose.  When I try to tighten the large thread on the front
>     engine plate it will not tighten up.  It gets almost tight then
>     pops loose and spins.  The threads on the pillar are not damaged,
>     so it must be the wrong nut.  Same for the other end.  A UNF nut
>     will not go more than a couple of turns then stops.  I even tried
>     running a metric die over the threads and no dice.  I am confused.
>     Mike MacLean
>
>
>
>
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