3M DBI SALA Stainless Steel Flush Core Insert Mount HC Davit Base 8000090For a core insert base (stainless steel) designed for use with 3M DBI SALA davit masts as part of a confined space rescue and work support system, use 3M DBI SALA Confined Space HC (High Capacity) Core Insert Base. The core insert base is constructed of SAE 304 stainless steel, which provides corrosion protection against the elements and is silver in appearance. It's designed to be installed flush into the working surface, reducing or eliminating