Digital Electronic/Code Keyless Keypad Security Entry Door Lock Right Handle New Suitable For Door Thickness: 35~50mm, Standard 2 3/8" Backset Material: Zinc Alloy Stainless Steel Lock Rod Thickness:8mm Doors Fit:35mm To 50mm Thick Static Current:10uA Dynamic Current:400 MA Battery: DC 6V Or 4X1.5V AAA Some Screws& Nuts,&Washers Outside: Length Is 7 7/8" Width Is 2 1/2" Depth Is 1" Latch Center To Top Is 4 1/2" Latch Center To Bottom Is 2 3/8" Standard 2 3/8" Backset Inside: Length Is 4" Width Is 2 1/4" Depth Is 3/8" Latch Center To Top Is 2 1/4" Latch Center To Bottom Is 1 3/4"