CRL's Versatile UV Lock can be used for both single inset or overlay glass doors. Requires drilling a 1" (25 mm) diameter hole in the glass door, with adhesive applied to rear surface of cover plate, and bonding the latch to the glass side panel. Each Lock includes a 1-7/8" (48 mm) short cam for overlay doors and a 2-3/8" (60 mm) long cam for inset doors. Designed for 'all-glass' cabinets with a maximum glass thickness of 3/8" (10 mm).