Little grub screws

[gooseholla]

Does anyone know where I can get those little screws that go in focusers/barlows/diagonals ( I assume they are all the same size?!)? I have tried astro boot but no luck. I need about 4 as I have lost my barlow one, diagonal one, and 1.25" adapter one (must have used them for a project and forgotten what!!!).

[scogyrd]

I'm not sure where the best place to get them is but I had a new hole drilled and tapped in a focuser the other day and I'm using a small m4 bolt for the time being.

[coulthamst]

Hi gooseholla. Skywatcher, William Optics, and Revelation all use standard metric threaded screws for these applications - I have checked using vernier calipers and thread gauges. I would suggest many other astro firms also use the same metric standard. I have measured M3, M4, and M5 screws on my various focusers, barlows, diagonals, and adapters. Try googling such firms as RDG Tools, Screwfix, and boltmeup and look for knurled head screws in the size/s you require.

Hope this helps

Jim

[gooseholla]

Perhaps taking the diagonal, adapter and barlow into B + Q and placing bolts in the holes would work just as well then?

[alan potts]

The B&Q is not a bad idea because if you do find the correct screw they will most likely cost an arm and both legs.

Alan

[gooseholla]

You don't have to buy them from there lol Just find the exact match.