Hangcheng Keyless Entry Door Lock Deadbolt Keypad Digital Combination Higher Security Keypad Door Knob Mechanical…

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High Grade Stainless Steel 304
100% Mechanical (no risk of low battery), Stainless Steel deadbolt lock is extra hard (304), you can use passcode or key to lock 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″
Design for DIY installation. Combination can be 4-8 digits (no repeats) with tumblers providing over 8,000 options. Please be noted that the combination code can be used in any order.
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.