guide scope tube ring bolts?

[Astroman (Andrew Wall)]

Hi all,

Fairly simple question... The bolts that hold a guide scope in their tubes usually have nylon tips on them, what shape are the tips? pointed? round? flat? can someone please either tell me or at least show me as I am making some and thought I would ask, I thought they were pointed with a slight flat but could be wrong.

[Striker (Tony)]

My losmandy tips are just cylindrical..(omg thats a big word for me) with a flat face on the end.

[ballaratdragons (Ken)]

Astrew,

They are flat ended and hang out of the Aluminium or Stainless bolt approx 4mm

Also, it is a very hard nylon.

[Astroman (Andrew Wall)]

Yep thats good, I have the nylon bolts that will do the job perfectly, they are 1/4" dia by about 1/2" long, the rounded head on them is about 5mm. I will be drilling into probably either 1/2" or 3/8" bolt, more than likesly 1/2" so there is a bit of wall thickness at the end then tapping it to take the nylon bolt, should work out well. Bit of an overkill, but atleast it wont move