|
From the Agena website
Nut to attach spider to OTA for GSO Dobsonian or Newtonian telescope tubes. Usually used with GSO's 6", 8" and 10" reflectors. Part # FF240. Sold individually.
Specifications:
Total length = 13.3mm
Head length = 9.0mm
Shaft length = 4.3mm
Head diameter = 11.7mm
Female thread specification = M5 with 12mm thread length
|