Yes, you can change a key lock to a thumb lock.
Understanding the Change
It's possible to replace a double-ended key cylinder lock with a thumbturn cylinder lock. This process primarily involves swapping out the existing lock cylinder with one that features a thumbturn mechanism on one side and a key opening on the other.
Key Considerations for the Change
- Measurements are Crucial: Accurate measurements of the existing lock cylinder are vital. Measure the distance from the screw hole to the end of the cylinder on both sides. This ensures the new thumbturn cylinder will fit correctly.
- Type of Lock: The reference refers specifically to swapping a "double ended key cylinder" for a "thumbturn cylinder." This implies you're dealing with a cylinder lock mechanism, common in many doors.
- Ease of Installation: While the swap is generally feasible, if you are unsure, it's best to contact a locksmith.
How to Proceed
- Measure your existing cylinder: Carefully measure from the screw hole to each end of the current cylinder.
- Purchase a compatible thumbturn cylinder: Look for a cylinder lock that matches your measurements and has a thumbturn on the interior side.
- Replace the cylinder: Follow the manufacturer's instructions to remove your existing cylinder and replace it with the new thumbturn cylinder.
- Test the lock: Ensure that the new lock functions smoothly and without any binding.
Benefits of a Thumbturn Lock
- Convenience: Thumbturn locks offer easier operation from the inside, requiring no key.
- Emergency Egress: In case of emergencies, a thumbturn lock provides quicker egress, allowing you to turn the mechanism easily.
| Feature | Key Lock | Thumb Lock |
|---|---|---|
| Operation | Requires a key to operate from both sides | Uses a thumbturn on the interior |
| Convenience | Less convenient from inside | More convenient from the inside |
| Emergency Exit | Slower if you need a key | Faster emergency exit is possible with no key |
