Concealed flanges provide cleaner lines for exposed conditions HUCQ-series hangers are tested, load rated and code compliant Strong-Drive SDS Heavy-Duty Connector screws are included Install wood joists to wood, masonry and concrete Seat width: 5-1/4 in. SIMPSON HUCQ5.25/11-SDS 5-1/4" X 11" HEAVY DUTY GLULAM HANGER CONCEALED/REVERSE FLANGE W/ SDS SCSREWS