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GSO Replacement Thumb Screw, Metric M4-0.7, 13mm Thread Length for Astronomy Accessories (Pack of 2)

4.0 (1 Reviews) Read Reviews Write Review
Brand GSO
Part Number -

Product Info

Manufacturer Description

Thumb screw with knurled head; Metric M4-0.7 thread with 13mm 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 long screw shown on the upper right side of the product photo above. The shorter screw on the bottom left is not included and is sold separately.


4.0 (Based on 1 Reviews) 100% of reviewers recommended this product.
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      User Notes:
      Review by litebkt of Mariposa, CA.
      Jan 6, 2011

      4.0 It's pretty much the only choice.


      Strong Construction,Compact



      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.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

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