... of grab bar:MATERIALS:Grab Bar 18-8 S, type-304, 18-gauge (1.2mm) stainless steel ... 1/2" (38mm).Concealed Mounting Flanges 18-8 S, type-304, 1/8" (3mm) thick, stainless steel plate; ... (80mm) diameter.Snap Flange Covers 18-8 S, type-304, 22-gauge (0.8mm) drawn stainless steel ... 16mm) thick painted or tiled drywall.SPECIFICATIONGrab bar shall be type-304 stainless steel with satin finish. Grab bar shall ...