With Screw nut set. Wall Base with 1/4" Screw Bolt. with 3/8" mount, and self-tapping screw design on the front side. with 3/8" mount, and self-tapping screw design on back side. Size as photos, we have 40mm, 50mm 70mm, and 80mm with 1/4" or 3/8" mounts for choice.
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