Introduction
The Superior Brass Knob Lock (CC 57 mm) Chrome Plated 200×48 mm Only Knob Set (Pair) is a sturdy and elegant locking handle solution designed for internal doors. Made from solid brass with a polished chrome finish, it delivers durability, smooth operation, and a refined appearance — ideal for residential, commercial, and office interiors that require a secure lock.
Key Features & Benefits
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Function: Knob Lock — key‑operated locking handle set for doors
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Centre-to-Centre Compatibility: 57 mm standard mortice lock spacing
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Finish: Chrome Plated for a corrosion-resistant, polished look
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Material: Solid Brass for long-term strength and reliable performance
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Operation: Smooth knob rotation for locking/unlocking
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Inclusions: Pair of knob handles, spindle, fixing screws
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Design: Clean, balanced 200×48 mm backplate suitable for traditional and modern interiors
Specifications
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Backplate Dimensions: 200 mm × 48 mm
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Material: Solid Brass
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Finish: Chrome Plated (CP)
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Function: Knob Lock (key‑operated)
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Centre-to-Centre (CC): 57 mm
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Set Contents: Knob handles (pair), spindle, screws — lock body not included
Applications
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Bedrooms, offices, storerooms, and internal doors requiring secure key locking
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Residential homes, commercial offices, hotels, and facilities needing reliable lock hardware
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Compatible with standard timber internal doors with 57 mm CC mortice locks
Installation & Inclusions
Package Includes:
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Pair of knob lock handles
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Spindle
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Fixing screws
Installation Instructions:
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Align the 200×48 mm backplate on the door over the 57 mm CC mortice lock.
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Insert the spindle through the lock body.
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Attach knob handles on both sides of the door.
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Fasten with the provided screws and ensure tight fit.
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Test knob rotation and locking/unlocking functionality before regular use.
Why Choose This Product?
This knob lock set offers reliable and secure locking with a tasteful chrome finish and robust solid brass build. Its compatibility with 57 mm CC mortice locks makes it versatile for a range of standard doors, while the elegant backplate design ensures a clean, professional look for interiors.
👉 This is a key‑operated knob lock handle set for internal doors, compatible with 57 mm Centre-to-Centre mortice locks.
Q2. Does this package include the lock mechanism?
👉 No — this is an “Only Knob Set.” It includes knob handles, spindle, and screws, but does not include the mortice lock body itself.
Q3. What material and finish is used?
👉 The set is made from solid brass and finished with chrome plating for durability and corrosion resistance.
Q4. Is it suitable for standard internal doors?
👉 Yes — it fits standard timber internal doors using 57 mm Centre-to-Centre lock spacing. For non-standard doors, compatibility should be verified.
Q5. What warranty does this product carry?
👉 This product comes with a 10‑year mechanical warranty and a 2‑year finish warranty, as per your warranty schedule.
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