Hatch Latches are constructed of corrosion resistant stamped 304 stainless steel. Simple screw-in action holds hatch securely in closed position. Installs with four #10 RH fasteners (not included).A11-1/8″ B17-7/8″ C1-3/8″ UPC35514321136MPN321291-1LNS Part #354-3212911KMS Part #SDG 3212911DMP Part #00-0263