The swivel foot base with mounting holes is made of stainless steel. It is a heavy-duty leveling foot with a rubber pad that provides resistance to vibration, making it useful for precision applications. There are options available with load capacities ranging from 6600-8800 pounds (2993.71-3991.61 kilograms). The holes enable mounting of the fixture directly to a concrete floor. It requires a threaded stem.
For technical details and images, please search for the product using the 80/20 interactive catalogue found here: https://catalogs.8020.net/80-20-Catalog-26/C/.