3M™ DBI-SALA® Confined Space HC (High Capacity) Floor Mount Base is constructed of 304 stainless steel and is designed to be installed directly onto the working surface. Integrated mounting holes accept M20 fasteners for securing the base into position. When used as part of our complete system, this base meets the requirements of EN795:2012, EN1496:2006, CEN/TS 16415: 2013, and AS/NZS 5532.