Simpson Double 2 x 12 Concealed-Flange Heavy Face-Mount Hanger HUC212-2 4-Cutter 120 is a 12 diameter

120 is a 12 diameter 2 Flute Dowel Drill (Long Series (77mm))

Wear-Resistant Surface Treatment: A special surface treatment enhances performance and longevity under continuous impact loads

to properly cradle standard 4x4 lumber

Is the HU410TF suitable for use in corrosive environments

What gauge steel is used in this hanger

Simpson Double 2 x 12 Concealed-Flange Heavy Face-Mount Hanger HUC212-2 4-Cutter 120 is a 12 diameterThe Simpson HUC212 2 HUC Galvanized Face Mount Concealed Flange Joist Hanger for Double 2x12 is a heavy duty face mount hanger engineered by Simpson Strong Tie for structures requiring additional strength and safety factors. Designed to accept a double 2x12 member, this hanger features concealed header flanges that deliver cleaner visible lines in exposed framing conditions. Manufactured in the United States from 14 gauge steel with a G90 zinc