Pier Adapter of the 900 Mount

The 900 series mount is designed to fit into our 8" outside diameter pier which is available in several heights. The pier adapter of the 900 mount shown above fits into the post (aluminum tube) of the pier assembly and is secured with six (6) 5/16-18 screws at the location marked C.

If you want to make your own pier, you can either use these six side holes (marked C) or you can use the four countersunk through-holes (marked A) located on the top of the plate. You can also drill additional countersunk holes to fit your specific requirements.

A - Countersunk through-holes for 1/4-20 cap screws - You can use these four (4) holes to attach the mount to a flat surface. The bolt circle radius is 3.615".

B - The rest of the mount attaches to this pier adapter with hand knobs at these locations.

C - These six (6) 5/16-18 threaded holes are spaced every 60 on the circumference.

D - The screw that is installed at this location is used to help center the rest of the mount during assembly.

Copyright © 2004, Astro-Physics, Inc. - All Rights Reserved
This page was last modified: April 29, 2004

Astro-Physics, Inc.
11250 Forest Hills Road, Rockford, IL  61115, U.S.A.
Phone: 815-282-1513   Fax: 815-282-9847