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The APO MC-10 fastens non-rotating masts to Rohn Towers, Glen Martin Roof Top Towers & Hazers, and many other applications.
Maximum mast diameter: 2-3/16". Minimum mast diameter: 1-1/4".
Adapter has a mounting flange with 5-1/6"-18 threads on a 3-1/2" bolt pattern. Four bolts lock the mast in place.
Maximum vertical load: 1000 lbsMachined 6061-T6 Aircraft aluminum clamp with stainless steel hardware. Made in the USA.
Non-rotating mast installations usually require 2 units, one each for the upper and lower mount.