Screw size?? Meade Lx200 dec cover

Merlin66 (Ken) · #1 11-12-2006, 08:19 AM

Anyone know what is the correct size of the small screws that hold the plastic cover on the dec drive?? Assume its a unc thread?? I need a couple of replacements.

Omaroo (Chris Malikoff) · #2 11-12-2006, 08:50 AM

LOL! A Bucks Gears installation?

Do what I did and space the available screws out over the area.......

Then... please let me know if you find out the replacement screw size.

Merlin66 (Ken) · #3 11-12-2006, 09:09 AM

No Buck's gears?!
Just wanted to check out the dec drive arrangement on the LX200 classical but found the screws on the cover missing/ damaged! Now need to replace.
May have to take one of the old ones to the local screw "specialist".

Doug · #4 11-12-2006, 09:44 AM

I'd be guuessing at 6g unc. Can you measure the diameter of one, not to a micron, but fairly accurately? We can go from there. I have a classic 200, but it is stored in its carton sulking at present.

Doug

Merlin66 (Ken) · #5 14-12-2006, 09:11 AM

Measured the screws:
diam 2.78mm
length 6mm
button head socket screw
They seem to be close to a #4/40 UNC but I'll have to confirm.
If anyone has more info, please let me know.
When finalised I'll get a couple of dozen, for myself and others!!!

Doug · #6 14-12-2006, 10:18 AM

4g-40unc sounds like it would be right based on your measurement. It wont be metric or BA or any other exotic thread coming from the US.
cheers,
Doug

Merlin66 (Ken) · #7 15-12-2006, 07:58 AM

OK I've ordered a dozen screws. #4/40 UNC, if they fit as expected I can supply "spares" to other members with similar LX200 problems.