TOSTEM "Elenze" U5.QDJ319 + QDJ322R sliding door lock key replacement due to lost key

"I lost it, so I want to exchange the entrance lock key."

He intends to replace the sliding door lock because he lost it.The sliding door is TOSTEM.It looks like a U9, but is it compatible with a DN cylinder?I disassembled the housing and confirmed the structure, but the size is still different.

The cylinder is U5.I rarely see it.That is, there is no stock.

We will give you a separate official estimate and arrange for the replacement work to be done at a later date. Replacement is with two identical cylinder keys. Two types with the same key: doorstop-lock of the sliding door and combination-lock of the sliding door. The model is "inner/outer door lock (QDJ2) + combination-lock of the sliding door outer lock (QDJ2R)". It would be quite expensive to replace these parts. Approximate estimates were obtained.

That evening, I was informed that the key was found, and the exchange was postponed.

Even in not-so-old homes, there are probably many U5 sliding door locks. This time, let's keep it in stock. (Increasing inventory is depressing)

TOSTEM U5 Door inside/outside lock (QDJ319) + combination-lock of the sliding door outside lock (QDJ322R) Part number HG4Z0003