Defender Security U 9928 Keyed Sash Lock, 2 in. Hole Centers, Heavy Duty Zinc Diecast, White Finish This sash lock can be used on horizontal and vertical sliding windows Child proof lock unlocks only with key Base of lock measures 1-inch deep, keeper measures 5/8 inch deep Each lock is keyed differently 2-inch hole center spacing Heavy duty zinc diecast construction Verify dimensions against line drawing image before ordering This sash lock can be used on horizontal and vertical sliding windows constructed of aluminum, wood and vinyl materials 2 in. hole center spacing White in color Heavy duty zinc diecast construction