3M™ DBI-SALA® Confined Space HC (High Capacity) Wall Mount Base is constructed of galvanised steel and is designed to be installed onto vertical wall surfaces. Integrated mounting holes accept M20 fasteners so you can secure 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.