Keyless Entry Keypad Deadbolt Door Lock 304 Stainless Steel 100% Mechanical - No Risk of Low Power$$Tools & Hardware Other

100% Mechanical (No Risk of Low Battery), Stainless Steel 304 deadbolt lock, you can use passcode or key to lock/open it, very difficult to pry open. Wear-free keypad material, no clues left for thieves, higher security. Does not lock automatically (This can be a pro or con depending on your needs) Slight adjustment to door knob cutout may be needed to accommodate width of lock(Borehole can not less than 1-15/16"). For double bores standard door, this lock must install on the above bore. Size 5-1/2" x 3-1/4", Maximum borehole diameter 2-1/8" Suitable for standard prepared doors, maximum borehole diameter 2-1/8" (Suitable for wood or metal door thickness of 35-50mm/1.38-1.96inch), works both left/right handed and inward/outward opening doors. Combination can be 4-8 digits (no repeats), Please be noted that the combination code can be used in any order.