- 20% off
From The Anvil
From The Anvil - Aged Bronze 3" 5 Lever BS Dead Lock KA
Sale price £47.13 (Inc. VAT) Normal Price: £58.91 £39.28 (Ex. VAT)Unit price /Unavailable -
- 20% off
From The Anvil
From The Anvil - Polished SS 3" 5 Lever BS Dead Lock KA
Sale price £37.14 (Inc. VAT) Normal Price: £46.43 £30.95 (Ex. VAT)Unit price /Unavailable -
Premium Security for External Doors
BS3621 5 Lever Deadlocks – Strength & Style
Our insurance-approved BS3621 5 lever mortice deadlocks are built for long-term reliability. With anti-drill plates, hardened steel deadbolts, and precision engineering, they meet the needs of both residential and commercial properties.
Available in 64mm and 76mm case sizes, they fit a wide range of timber doors and are ideal for properties from period homes in Bath to modern builds in Manchester.
Coordinate with door furniture and mortice key profile escutcheons for a complete upgrade.
Get the Right Lock First Time
Expert Guidance You Can Trust
Choosing the correct mortice lock is essential for both security and compliance with UK insurance requirements. A 3 Lever Mortice Deadlock is best suited for internal doors or low-risk areas, providing basic security at a cost-effective price. For external front and back doors, a 5 Lever Mortice Deadlock tested to BS3621 is recommended, as it meets insurance and police approval standards.
If you prefer a lock that also operates the latch and can be used with a handle set, a 5 Lever Sash Lock may be the ideal choice, combining security with everyday convenience.
We can advise on case sizes (64mm or 76mm), finishes to match your décor, and compatible accessories such as Standard Profile Escutcheons and Door Furniture.
Need tailored guidance? Visit our Contact Page and our team will help you select the right lock for your needs, whether it’s for a heritage property, modern home, or commercial premises.
Frequently Asked Questions
What is a 5 lever mortice deadlock?
What is a 5 lever mortice deadlock?
A 5 lever mortice deadlock is a high-security lock installed within the door edge, requiring the correct key to lift all five levers before retracting the bolt. Many models meet BS3621, a standard recognised by UK insurers.
Are BS3621 deadlocks insurance approved?
Are BS3621 deadlocks insurance approved?
Yes, BS3621 5 lever deadlocks are insurance-approved and recommended by police security initiatives for external timber doors.
Do they come in different finishes?
Do they come in different finishes?
Yes, finishes include polished brass, satin chrome, antique brass, and more, allowing you to match your door hardware.
Trusted UK Supply – Nationwide Delivery
Quality Brands & Finishes to Match Your Home
We supply trusted brands such as From The Anvil, Carlisle Brass, Heritage Brass, and Frelan Hardware.
Our range includes polished brass, satin chrome, antique brass, and other finishes to complement your décor.
Serving trade and homeowners in London, Leeds, Bristol, Glasgow, and across the UK, we deliver police-approved, insurance-compliant deadlocks you can depend on.