Thumb screw with knurled head; Metric M4-0.7 thread with 7mm thread length. Pack of 2 screws.
Excellent replacement for lost screws or upgrades for smaller ones on your astronomy accessories. Will work with commonly available eyepiece holders, adapters, diagonals, barlows, etc. that are threaded for M4 screws. Large knurled head makes it easier to grip with gloves on.
You will receive 2 pieces of the short screw shown on the bottom left side of the product photo above. The longer screw on the top right is not included and is sold separately.
Jan 6, 2011
It's pretty much the only choice.Pros:
Strong Construction,CompactCons: Comments:
This is pretty much the only choice for reticle eyepieces and for finder scopes. And it is only available here. I did purchase another brand a while back that had a flashing feature but it was big, bulky, and broke after first use.
It would be nice for these things to turn off automatically after a few hours of non use. I just can't seem to remember to turn them off and I'm always replacing batteries.
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