These non-magnetic 303 stainless steel Pedestal Posts offer a stable way to mount instruments to an optical table. They come in two versions 8-32 (M4) or 1/4"-20 (M6) taps on both ends. Pedestal posts are available in varying heights from 0.5" (12.5 mm) to 6" (155 mm). Posts are able to be stacked to achieve the perfect height for your application using 8-32 or 1/4"-20 screw adapters. The pedestal base is made to be compatible with our steel clamping forks, offering a level of flexibility when securing post assemblies to an optical table.