GSO Spring-Loaded Tension Screw for Select GSO Finder Brackets # FF289

Our #: PAH-GS-FF289
Mfg #: FF289
Our Price: $7.95
Free shipping for this item in the US
More Info

Contiguous US Customers:
All items we sell ship for free within the Contiguous US. Shipping will be via the cheapest shipping method which will vary depending on the items in your order. During checkout, you may also be shown other optional faster shipping choices.

US Customers in Hawaii and Alaska:
Free shipping applies to almost all products. A few large telescopes and mounts are excluded from this free shipping offer. For these items, please contact us to obtain a shipping quote before you check out using the online shopping cart.

International Customers:
Free shipping does not apply to international orders. During check-out, you will be presented with several shipping choices and costs. However, the export of some items may be restricted outside the US due to size or manufacturer restrictions.

$25 Order Minimum Applies
Out of Stock
Availability: Expected late May

Product Details

Replacement Spring-Loaded Tension Screw as sold with GSO's 30mm and 50mm 3-point finder brackets (# 6BK and 8BK). Not for use with GSO's 6-point finder bracket (# 8BK-01). We do not know if this screw will work with similar finder brackets sold by other brands like Orion.

Installation instructions:

This item consists of 4 parts as shown in photos 2 and 3 above.

  1. Thread part B into your finder bracket from the outside.
  2. Insert part A into part B from inside your finder bracket.
  3. Slide part C (spring) on to part A (and on top of part B) from the outside of the finder bracket.
  4. Screw part D on to the thread at the end of part A. You will need to compress the spring (part C) in order to get the male thread on part A to reach the female thread inside part D. Be aware that this step can be hard to do.

Part # FF289. Sold individually. 

Other Information

  • Country of Manufacture: Taiwan