CRL's Black Chrome Random Keyed Thru-Glass Plunger Lock will work on swinging doors, and accommodates 3/16" or 1/4" (5 or 6 mm) thick glass. A black plastic "press-in keeper" is included, and acts as a glass stop and pin receptacle. The Lock's case and cylinder are zinc diecast. Gaskets and hole drilling template are included. Requires a 1" (25 mm) drilled hole in the glass for installation. For blank replacement keys cut on one side order Cat. No. BKEY; for blank replacement keys cut on two sides order Cat. No. B2KEY.