Mechanical Deadbolt Door Lock Combination Knob

• No Batteries Required: keep it simple, stupid. For those of you tired of fighting your battery door locks.
• Installation: easy to set the combination and install by yourself.
• Adaptability: fits most doors, maximum borehole diameter 2-1/8" (Suitable for a wood or metal door thickness of 1.38-1.96inch), both left/right-handed and inward/outward opening doors.
• High Quality: extremely solid constructed and engineered well.
• Options: makes it way easier to get in the house without fumbling for your keys. Comes with a spare key, you can also use the key.
• Affordable: It's sturdy and perfect for all kinds of weather. Make a good gift for anyone you care about if he always forgets to carry the key.
• Usage Scenarios: perfect for the house with kids, rental property, interior garage door, shop, garage, Airbnb property, backyard shed, gate, delivery box, home's terrace door, vacation home, front door, RV barn, bedroom and more.
  

Specification:

Product Size：5-1/2" x 3-1/4"
Adapter door thickness：1-3/8“ (to) 2”
Center distance：1-3/16”(to) 2-1/8
Lock margin：2-3/8”(to) 2-3/4”
Open the door: inside and outside

Tips:

1. 2-3/8"(60mm) Back sets/Latches

2. Maximum applicable bore size 2-1/8 “.

3. Combination can be 4-8 digits (no repeats) and you can enter these numbers in any order to unlock it. This door can be opened at any time from the inside without using the password.

4. This lock does not lock automatically for convenience in coming and going, and can easily be locked simply by turning the knob to the left or by using the key.