Simpson Strong-Tie® SJC connectors have been specifically designed for various CFS joist, rafter and underside of metal-deck applications. The unique clip dimensions enable easy installation on the open side of joists and rafters with up to 3-1/2 in. flanges and return lips up to 3/4 in. For metal-deck applications, the prepunched 3/8-in. holes easily accommodate 6-in., 8-in., 10-in. and 12-in. on-center metal-deck flutes. MSJC 2 in. x 4-1/2 in. x 10-1/4 in. 12-Gauge Galvanized Steel-Joist Connector (15-Qty) (Pack of 36).