Intro
The Superior Brass Knob Lock in Antique Copper is a premium knob solution designed for doors requiring secure locking with sash lock compatibility. Crafted from solid brass, it delivers smooth operation, long-term durability, and fire-rated performance suitable for refined residential interiors.
Key Features & Benefits
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✅ Function: Knob Lock Set
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✅ Finish: Antique Copper
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✅ Material: Solid Brass
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✅ Compatibility: Designed for 57mm sash locks
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✅ Mechanism: Patented stainless steel ball bearing mechanism for smooth action
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✅ Fire Rating: Fire rated up to 4 hours
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✅ Operation: Smooth knob rotation with dependable locking support
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✅ Inclusions: Knob set and fixing components (lock sold separately)
Specifications
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• Backplate Size: 200 × 50 mm
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• Centres: 57 mm
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• Projection: 70 mm
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• Base Material: Solid Brass
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• Finish: Antique Copper
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• Unit of Measure: Pair
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• Manufacturing Detail: Punched in-house from passage set
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• Lock Compatibility: 3 Lever Lock x29020 (45 mm) or x29021 (60 mm)
Applications
Ideal for internal and entry doors in residential homes where a sash lock function and fire-rated hardware are required. The Antique Copper finish complements classic, heritage, and premium interior door styles.
Installation & Inclusions
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Professional installation recommended
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Designed to be used with compatible 57mm sash locks
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Package includes knob set and required fixing components
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Lock supplied separately
Available Finishes
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Antique Copper
Why Choose Superior Brass?
Superior Brass is recognised for solid brass craftsmanship and precision engineering. This knob lock set combines fire-rated assurance, smooth performance, and timeless styling for dependable everyday use.
👉 This is a knob lock set designed to operate with 57mm sash locks on residential doors.
Q2. What material is it made from?
👉 The knob set is manufactured from solid brass, offering excellent strength, durability, and a premium finish.
Q3. Is this knob lock fire rated?
👉 Yes, this knob lock set is fire rated for up to 4 hours when installed as part of a compliant fire door system.
Q4. Does this product include the sash lock?
👉 No, the knob set is supplied without the lock and must be used with a compatible 3 lever sash lock (45 mm or 60 mm backset).
Q5. What warranty does this product include?
👉 This product includes a limited warranty covering manufacturing defects in materials and workmanship, offering 10 Years Mechanical Warranty and 5 Years Finish Warranty, subject to proper installation, normal residential use, and regular maintenance. The warranty does not cover labour costs, misuse, improper installation, environmental exposure, or normal wear and tear.
Payment & Security
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