QS6055/5 Stainless Steel Bathroom Mortice Lock | 55mm Backset

QS6055/5 Stainless Steel Bathroom Mortice Lock

The QS6055/5 is a heavy-duty stainless steel bathroom mortice lock combining a latch bolt and deadbolt in a single body. Designed for timber doors in South African residential and commercial bathrooms, it operates via a WC thumbturn mechanism — providing reliable privacy locking without a key.

With a 55mm backset and 60mm centre-to-centre (CTC) distance, this lock is compatible with standard South African door hardware and pairs seamlessly with WC lever or knob sets.

Key Specifications

• Type: Bathroom mortice latch lock and deadbolt (WC)
• Material: Stainless steel
• Backset: 55mm
• Centre (CTC): 60mm
• Forend size: 24mm × 170mm
• Lock body size: 80mm × 127mm
• Application: Timber doors
• Includes: Striker plate

Why Choose the QS6055/5?

• Stainless steel construction resists corrosion — ideal for humid bathroom environments
• Combined latch and deadbolt in one body for simplified installation
• WC thumbturn operation — no key required for privacy locking
• Designed for standard South African timber door frames
• Striker plate included for a complete installation

Frequently Asked Questions

What is the backset of the QS6055/5?
The backset is 55mm — measured from the edge of the door to the centre of the keyhole/spindle.

What does WC mean on a bathroom lock?
WC stands for Water Closet. A WC lock uses a thumbturn on the inside to engage the deadbolt, providing privacy without requiring a key. It is the standard configuration for bathroom and toilet doors in South Africa.

Is this lock suitable for my timber door?
Yes. The QS6055/5 is specifically designed for timber doors and includes a striker plate for a complete, ready-to-install solution.

What is the CTC distance and why does it matter?
CTC (centre-to-centre) is the distance between the latch spindle and the keyhole/thumbturn spindle — in this case 60mm. This must match your door handle set to ensure correct alignment.

Can I use this lock with any WC lever handle set?
Yes, provided the handle set has a matching 60mm CTC and 55mm backset. Always verify compatibility with your chosen handle set before ordering.

What is the lead time for this product?
Typically 3–4 days from order confirmation. Nationwide delivery available across South Africa.

Is the QS6055/5 suitable for commercial bathrooms?
Yes. The stainless steel construction and robust lock body make it suitable for both residential and light commercial bathroom applications.

Does this lock come with a striker plate?
Yes, a striker plate is included in the box.

Delivery Information

At Doors Direct, we strive to make the delivery of your quality doors a seamless and convenient experience.

Nationwide Delivery:

Based in Durban, we extend our reach to bring our premium products directly to your doorstep anywhere in South Africa. Our efficient overnight transport ensures that you receive your order promptly.

Cost-Effective Options:

With a diverse range of transport service providers, we have the flexibility to secure competitive quotes, especially for bulk orders. Feel free to contact our office at 031 012 5033 to explore cost-saving options tailored to your needs.

Lead Times and Timely Delivery:

Our commitment to transparency is reflected in the lead times displayed on our website for made-to-order products. Once your order is dispatched, anticipate delivery within 24 – 48 hours, allowing you to enjoy your new doors without unnecessary delays.

Quality Assurance:

Doors Direct takes pride in delivering products that are undamaged and in excellent working order. While we make every effort to maintain the integrity of your purchase, we recognize that, on rare occasions, products may incur damage during shipping.

Damaged Products:

In the unfortunate event that your product arrives damaged, we have a straightforward solution. At our discretion, Doors Direct will either repair or replace damaged items. To facilitate this process, please ensure that the waybill is endorsed with details of the damages. For more details, refer to our comprehensive guarantee policy and terms and conditions at Guarantee Policy and Terms & Conditions.

Contact Us:

Have questions or need assistance? Contact our head office at info@doorsdirect.co.za or 087 012 5286. We are here to ensure your satisfaction at every step of the journey.

Thank you for choosing Doors Direct – Elevating your door-buying experience with quality, efficiency, and reliability.