Onslow Long Plate Unsprung Door Knob
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Our flat-fronted Onslow door knob is a contemporary alternative to our beehive design.
This version includes a low-profile, long backplate for a bold look.
The knob is unsprung, which means you can use it with an existing sprung latch. To make sure it stays easy to turn, we'd recommend using a lightly sprung latch.
There’s also no danger of it coming away in your hand – we’ve engineered the backplate and knob to be inseparable.
Polished nickel is our answer to chrome. It’s a bit warmer, which we think is more versatile, so you can use it with warm or cool colour palettes.
- Made from solid brass
- 4mm backplate with screwless ‘front’ side
- Super smooth turn thanks to self-lubricating, high-tolerance bushings
- Longer handle neck for a comfortable grip
- Designed for use with a tubular latch or mortice lock
- Engineered to fit all standard door thicknesses
- Suitable for interior and exterior doors
- Sold in a pair
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We dispatch all orders quickly so you can expect delivery in days, not weeks.
We sell direct so we can put the needs of our customers first.
We craft our products in-house so we can strive for excellence without compromise.
We use sustainable materials and build products that last.

FAQs
We recommend using a professional to fit all Corston products. Electrical items must be installed by a qualified electrician.
If you opt for our unsprung handles, a strong latch will work best with our lever handles to prevent drooping. You can use a lighter latch with our knobs to ensure they're easy to turn.
They'll support 40kg per bracket.