Spare parts: thumb screw

simei-sky · Post by **simei-sky** » Tue May 16, 2006 9:30 am

Hi.. Just got a scope Orion 127 Mak from the lelong sale. I am looking for thumb screw size: 1/4" to secure the scope to the tube ring. Went to peninsular (cathey and the rest of the shopes there) but could not find any spare parts.

Which shop do you guys go and find spare parts or anyone has spares to sell?

Post by **rcj** » Tue May 16, 2006 9:46 am

i have lots here. no harm giving you one that is suitable. you are also staying in the east? let me know. 94884029

ariefm71 · Post by **ariefm71** » Tue May 16, 2006 11:07 am

Hi Ivan,
Here's the address of Yong Seng screws, they have 3 shops, I always go the one in Ubi.

Yong Seng Screws Pte Ltd:
1) Blk 3026 Ubi Road 1 #01-186 S(408719)
Tel : 6744 8282 & 6744 8787 Fax : 6749 2855
2) Blk 3 AMK Tech 1 #01-04 Ang Mo Kio Ind Pk 2A S(568050)
Tel : 6481 8484 Fax : 6481 7090
3) Blk 6 Syed Alwi Rd #01-311 S(201006)
Tel : 6294 1866 Fax : 6294 1178

kayheem · Post by **kayheem** » Tue May 16, 2006 11:15 am

Do you intend to use the tube rings and thumbscrews like a six-point support found in some finderscopes like this?

http://www.ast.cam.ac.uk/~ipswich/Teles ... rscope.gif

Why not attach it to a dove tail bar using something like this?

http://www.telescope.com/shopping/produ ... uctID=6842

Kay Heem

Post by **rcj** » Tue May 16, 2006 12:47 pm

No offense but before you get screws from Yong Seng, make sure they don't tarnish...had bad experiences with them. you could also try the several Vin Mart stores in our country.

kayheem · Post by **kayheem** » Tue May 16, 2006 1:06 pm

If you are using the 6-screw attachment, ask for polycarbonate or nylon screws to prevent damage to the OTA finish.

You can also consider further protection by slipping a couple of 'helmet bands' (remember your NS days?) first and then using the screws to tighten on the bands instead of the OTA directly.

If you still decide to use metal screws, use stainless steel ones and not the metal ones, which will rust.

Kay Heem

simei-sky · Post by **simei-sky** » Tue May 16, 2006 4:57 pm

Alamak...no wonder the mixed up!!! my 1st msg was wrong...The thumb screw that I'm looking for is suppose to secure the tube ring to the mount....Sorry boss

Anyway, thanks for the advise and suggestion.

simei-sky · Post by **simei-sky** » Wed May 17, 2006 9:24 am

I managed to get the screws from rcj last night. Thanks....now I can move on