>
> That's a great tip.  I've not had much success measuring small
bolts/screws using thread wires (even when using chewing gum to hold the
wires upright, seems like you need teensy hands to do it successfully).

  I bought a wire loop with a full set of standard threads, coarse and fine
from MSC (or maybe Travers) years ago that I often use (they look like
bolts, but the elongated bolt head is drilled and tapped (so you can check
male or female), and they're cross drilled like pearls on a necklace, so I
can't loose just one).   That was a good purchase, and gets used often,
especially when scrounging through my 'bolt bucket' for a match.  If you
see one of these sets, take a look.
 I also purchased a screw ID plate for the small ones (smaller than #6),
but that doesn't get used very often for the things I typically work on.
Cheers
Claudio

Erik said:

bamboo skewers work well, and the ones I have on hand are perfect for #10
screws, being 0.180" diameter-- and measure the thread impression over as
many threads as possible.