Supplying Door Hardware & Architectural Ironmongery Since 1976

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Rim Cylinders

Rim Cylinders

(14 products)

High-Security Rim Cylinder Locks for UK Night Latch Doors

Rim cylinders are surface-mounted locks used to control night latch mechanisms on timber or composite doors. They're quick to replace, secure, and available in a wide choice of finishes for residential and commercial doors.

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Where Rim Cylinders Work Best

Surface-Mounted Security for Homes, Flats & Retrofit Projects

Rim cylinders are most commonly used in residential properties for front and back doors with night latches. They're especially popular for older properties, flats, and shared entrances where secondary locks are common. Designed for ease of fitting, they can be upgraded without disturbing the internal lock body — a great choice for homeowners, landlords, or maintenance teams handling multiple properties.

As part of our extensive Architectural Ironmongery range, they can be paired with our Accessories, Door Furniture, or Window Furniture collections for a complete finish.

Rim Cylinder Locks | BS3621 Rated Options | Fast UK Delivery

Expert Guidance

Unsure Which Rim Cylinder to Choose?

If you're looking to replace your current rim lock cylinder or upgrade to an insurance-approved version, our team is here to help. Whether you're working on a new project or simply replacing old hardware, we can guide you on sizes, compatibility, and finish choices.

Explore brands like From The Anvil, Carlisle Brass, Heritage Brass, and Frelan Hardware — all trusted names in UK door hardware.

Need help? Contact us and we'll assist with product selection and support.

Frequently Asked Questions

What is a rim cylinder?

A rim cylinder is a type of lock cylinder fitted to the outside of a door and used to control a night latch on the inside. It's commonly found on wooden doors and is surface-mounted.

Are rim cylinders insurance approved?

Some rim cylinders are insurance-rated if they comply with BS 3621 standards. Standard models without this rating may not meet insurer requirements.

Can I replace just the rim cylinder?

Yes. Rim cylinders can be replaced independently of the night latch mechanism, making them a cost-effective option for upgrading or re-securing your door.

What finishes are available for rim cylinders?

Rim cylinders are available in multiple finishes including brass, satin chrome, polished chrome, and black to match your door furniture and night latch.

Nationwide Supply

Trade Door Handles – Trusted UK Supplier

With over 40 years in the trade, Trade Door Handles is a trusted source for quality ironmongery in the UK. We supply a wide range of rim cylinders including BS 3621 insurance-rated models, keyed alike systems, and secure night latch components — all designed to suit UK security standards and door types.

We deliver rim lock cylinders to customers in London, Manchester, Birmingham, Glasgow, Cardiff, and throughout the UK. Whether you're fitting out a single door or managing a multi-property portfolio, we're here to help you get the right lock, first time.
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