required help - back cover screws?

14 Sep 2009, 19:12

hi all
i require a couple of back screws..not sure thats there correct title?

any help would be great..
ps. ive tried simular screws without luck..theres seems to be very small differances between them?

cheers
FG

14 Sep 2009, 21:34

I'am sure I can help you out, can you measure the holes with a digital caliper and post the size. Metric or imperial it doesn't matter... :-)

15 Sep 2009, 03:01

Hole size is not the only determinant - threads per inch(threads per centimeter) have to match. The battery caps from most Wittenauers are much finer threaded than the caps on say, a Bulova, despite having virtually the exact same pitch diameter(over the threads).

I have one of that exact same watch here....sure I can locate two of those caps...rarely do I throw them away. If only to pluck out a carefully used matching set to finish some piece off nicely. :-)

A nice quote from a site comparing and discussing the measurment of Imperial and metric threads.
"TO PROPERLY IDENTIFY A THREAD, YOU MUST HAVE BOTH A DIAMETER MEASUREMENT AND A PITCH VALUE, OR THREAD PER INCH VALUE. Using a thread gauge(or counting) on those little short caps would be a bitch.

15 Sep 2009, 17:40

thanks "klippie" and "retroleds" for info
yes as i found to my dismay..i had loads of theses bloddy screws and not
one fitted.i mean it fitted but didnt screw..umm just like my ex misses..lol

her on a good day.lol

so retro i shall take your offer up mate..as ive just recieved the other items you sent me..thanks by the way.
so please put emm aside for me.i will collect them with my next purchase from you.ta.
klippie i shall be in touch,hopefully you can help me with another item iam after..

cheers all
FG