Shure Bullet Grill Screws
Hi Fritz,
I looked back through all of your previous posts that I could see and didn't see this topic covered, which probably means it's there and I missed it......
Proper replacement grill screws for Shure Bullets: Are these commonly available and if so can you suggest a supplier? What are the specs on these little beasties anyway - TPI, Pitch, length, width - if you happen to know.
Thanks in advance,
Loren
YEOW!!! I've done more comparisons of various 520 shells and found -to my horror- that more I've tested seem to be tapped for 3-36 screws, NOT 4-36. Very close, but there IS a difference...
Hello Loren,
Couldn't find the details on any of the SHURE DISCONTINUED archives (a very useful site) so I had to take it upon myself to figger it out. I've done some noodling, taken a bunch of measurements, made some notes and done loads comparisons, and come up with this: The 520 'Green Bullet' and related 32-257 bodied mics use a flathead slotted countersunk 4-36 screw that's 3/16" long, made of brass, and is plated with Nickel or Chromium. The odd variable is in the diameter of the head surface. I'd known that earlier examples were smaller and that I would have to machine the newer screws down to a smaller wire gauge for them to fit into the countersink of the older grills, but there seems to be a sliding scale. Some have very pronounced shoulders, some are nearly parallel. Go figger...
As for a source? Besides buying directly from SHURE, you could try McMaster & Carr.