The HUC is designed for structures requiring additional strength and safety factors. These face-mount joist hangers have concealed header flanges providing cleaner visible lines in exposed conditions. Some models of this heavy-duty hanger can be special ordered with a skewable seat and a seat that slopes as far as up to 45°. HUC ZMAX® Galvanized Face-Mount Concealed-Flange Joist Hanger for 6×10 (Pack of 25).