QS6055/1/PVD Cylinder Latch & Deadbolt Mortice Lock
The QS6055/1/PVD is a premium cylinder latch and deadbolt mortice lock from QS Doorware, finished in PVD polished brass. Designed for interior and exterior timber doors, it combines robust security with a refined, enduring finish that resists tarnishing and daily wear.
Key Features
- 55mm backset — suits standard South African door preparations
- 60mm centre distance (latch to deadbolt)
- PVD polished brass finish — corrosion-resistant and long-lasting
- Accepts a standard euro-profile cylinder (sold separately or bundled)
- Mortice body fits into the door edge for a clean, flush installation
- Suitable for timber doors in residential and light commercial applications
Cylinder Options
Select your preferred cylinder on this product page:
Frequently Asked Questions
What is the backset on this lock?
The QS6055/1/PVD has a 55mm backset, which is the distance from the edge of the door to the centre of the keyhole. This is a standard size for most South African timber door preparations.
Does this lock require a cylinder?
Yes — the lock body does not include a cylinder. You can select a compatible cylinder on this product page, or choose "No Cylinder Required" if you already have one or are sourcing it separately.
Which cylinder is compatible with this lock?
This lock accepts a standard euro-profile cylinder. The QS1103SB (double cylinder) and QS1108SB (knob cylinder) are both compatible and available as bundle options on this product page.
What is the difference between the QS1103SB and QS1108SB cylinders?
The QS1103SB is a double cylinder — it requires a key on both sides, making it ideal for external doors where security is a priority. The QS1108SB has a knob turn on the inside and a key on the outside, offering convenience for internal use or where a thumb-turn is preferred.
What does PVD finish mean?
PVD (Physical Vapour Deposition) is a high-durability coating process that bonds the finish to the metal at a molecular level. It is significantly more resistant to tarnishing, scratching, and corrosion than standard plating — making it ideal for high-use door hardware.
Is this lock suitable for external doors?
Yes, when paired with a double cylinder (such as the QS1103SB), this lock is suitable for external timber doors. The PVD finish also provides added durability in exposed environments.
What is the lead time for this product?
This product is typically dispatched within 3–4 days from order confirmation, with delivery to most areas across South Africa.
Can I install this lock myself?
Installation requires a standard mortice lock pocket in the door edge. If your door is already prepared for a mortice lock with a 55mm backset and 60mm centre, fitting is straightforward. For new installations, we recommend using a qualified carpenter or locksmith.
