QS Doorware QS6055/3/PB Polished Brass Roller Ball Lock – 55mm Backset

QS Doorware QS6055/3/PB Polished Brass Roller Ball Lock – 55mm Backset

The QS6055/3/PB is a quality polished brass roller ball lock from QS Doorware, combining an adjustable roller bolt and deadbolt mechanism in a single body. With a 55mm backset and 60mm centre, it is engineered for precise, reliable operation and is a popular choice for interior and exterior timber doors across South African residential and commercial installations.

The PB finish (Polished Brass) delivers a warm, classic aesthetic that complements traditional and contemporary door hardware sets alike. A cylinder insert is required and can be added as an option on this product page.

Key Features

• Adjustable roller bolt and deadbolt — dual locking mechanism for added security
• 55mm backset — the standard backset for most South African timber door installations
• 60mm centre — distance from the centre of the knob/lever hole to the centre of the keyhole
• PB finish (Polished Brass) — warm, bright brass finish; genuine powder coated hardware from QS Doorware
• Cylinder not included — select a compatible cylinder as an add-on on this product page
• Compatible cylinders available: QS1103SB 60mm Satin Brass Double Cylinder or QS1108SB Satin Brass Knob Cylinder

Specifications

• Model: QS6055/3/PB
• Finish: PB – Polished Brass
• Backset: 55mm
• Centre: 60mm
• Bolt type: Adjustable roller bolt and deadbolt
• Cylinder: Not included – must be ordered separately
• Lead time: 3–4 days from order confirmation

Frequently Asked Questions

What does PB mean in the product name?

PB stands for Polished Brass. This refers to the finish applied to the lock body, giving it a warm, bright brass appearance. QS Doorware PB hardware is powder coated for durability.

Does this lock come with a cylinder?

No — a cylinder insert is not included and must be ordered separately. You can add a compatible cylinder directly on this product page. Two options are available: the QS1103SB 60mm Satin Brass Double Cylinder or the QS1108SB Satin Brass Knob Cylinder.

What is the backset on this lock?

The backset is 55mm — this is the distance from the edge of the door to the centre of the lock body. 55mm is the standard backset for most South African timber door installations.

What is the difference between the backset and the centre measurement?

The backset (55mm) is the distance from the door edge to the centre of the lock spindle. The centre (60mm) is the distance from the centre of the spindle hole to the centre of the keyhole. Both measurements are needed to ensure the lock fits your door and handle set correctly.

What type of doors is this lock suitable for?

The QS6055/3/PB is suitable for timber interior and exterior doors where a 55mm backset lock is required. Always confirm the backset and centre measurements match your door and handle set before ordering.

What is the lead time?

Standard lead time is 3–4 days from order confirmation.

Where can I buy the QS6055/3/PB Polished Brass Roller Ball Lock?

This lock is available online at doorsdirect.co.za with nationwide delivery across South Africa, including Johannesburg, Cape Town, Durban, and Pretoria.

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.