Atlantic Hardware
Atlantic 3 Lever Key Sashlock [CE] 2.5" - Urban Satin Copper
SKU: AT-ALKSASH3LK25USC
Sale price £14.27 (Inc. VAT) Normal Price: £17.84 £11.89 (Ex. VAT)Unit price /UnavailableAtlantic Hardware
Atlantic 3 Lever Key Sashlock [CE] 3" - Antique Brass
SKU: AT-ALKSASH3LK3AB
Sale price £14.27 (Inc. VAT) Normal Price: £17.84 £11.89 (Ex. VAT)Unit price /UnavailableAtlantic Hardware
Atlantic 3 Lever Key Sashlock [CE] 3" - Antique Copper
SKU: AT-ALKSASH3LK3AC
Sale price £14.27 (Inc. VAT) Normal Price: £17.84 £11.89 (Ex. VAT)Unit price /UnavailableAtlantic Hardware
Atlantic 3 Lever Key Sashlock [CE] 3" - Black Nickel
SKU: AT-ALKSASH3LK3BN
Sale price £14.27 (Inc. VAT) Normal Price: £17.84 £11.89 (Ex. VAT)Unit price /UnavailableAtlantic Hardware
Atlantic 3 Lever Key Sashlock [CE] 3" - Distressed Silver
SKU: AT-ALKSASH3LK3DS
Sale price £14.27 (Inc. VAT) Normal Price: £17.84 £11.89 (Ex. VAT)Unit price /UnavailableAtlantic Hardware
Atlantic 3 Lever Key Sashlock [CE] 3" - Matt Antique Brass
SKU: AT-ALKSASH3LK3MAB
Sale price £14.27 (Inc. VAT) Normal Price: £17.84 £11.89 (Ex. VAT)Unit price /UnavailableAtlantic Hardware
Atlantic 3 Lever Key Sashlock [CE] 3" - Matt Black
SKU: AT-ALKSASH3LK3MB
Sale price £14.27 (Inc. VAT) Normal Price: £17.84 £11.89 (Ex. VAT)Unit price /UnavailableAtlantic Hardware
Atlantic 3 Lever Key Sashlock [CE] 3" - Matt Gun Metal
SKU: AT-ALKSASH3LK3MBN
Sale price £14.27 (Inc. VAT) Normal Price: £17.84 £11.89 (Ex. VAT)Unit price /UnavailableAtlantic Hardware
Atlantic 3 Lever Key Sashlock [CE] 3" - Polished Brass
SKU: AT-ALKSASH3LK3PB
Sale price £10.23 (Inc. VAT) Normal Price: £12.79 £8.53 (Ex. VAT)Unit price /UnavailableAtlantic Hardware
Atlantic 3 Lever Key Sashlock [CE] 3" - Polished Chrome
SKU: AT-ALKSASH3LK3PC
Sale price £10.23 (Inc. VAT) Normal Price: £12.79 £8.53 (Ex. VAT)Unit price /UnavailableAtlantic Hardware
Atlantic 3 Lever Key Sashlock [CE] 3" - Polished Nickel
SKU: AT-ALKSASH3LK3PN
Sale price £10.23 (Inc. VAT) Normal Price: £12.79 £8.53 (Ex. VAT)Unit price /UnavailableAtlantic Hardware
Atlantic 3 Lever Key Sashlock [CE] 3" - Satin Brass
SKU: AT-ALKSASH3LK3SB
Sale price £14.27 (Inc. VAT) Normal Price: £17.84 £11.89 (Ex. VAT)Unit price /Unavailable

In-Depth Guide to 3 Lever Mortice Sash Locks
How They Work, Key Features & Benefits
A 3 lever mortice sash lock sits neatly inside a morticed cut-out in the door edge, combining a latch for everyday use with a deadbolt for locking. The three-lever mechanism means more key variations and stronger resistance to casual picking than a 2 lever model, making it ideal for rooms requiring more privacy and moderate security.
These locks are a popular choice for internal door security in bedrooms, home offices, and utility areas. Available in both 64mm and 76mm sizes, they are compatible with standard UK door furniture and are ideal for pairing with lock door handles on a backplate for a neat, professional finish.
Not Sure Which Lock You Need?
Get Expert UK-Based Advice
Whether you’re upgrading or replacing a lock, choosing the right Standard Mortice Key 3 Lever Sash Lock can make a big difference to security and convenience. Our team can guide you on sizes, finishes, and fitting. Contact us here for personalised help.
Frequently Asked Questions
Can a 3 lever mortice lock be keyed alike?
Can a 3 lever mortice lock be keyed alike?
Yes, you can have multiple 3 lever locks keyed alike so one key operates several doors.
How do I measure my existing mortice lock?
How do I measure my existing mortice lock?
Measure the case depth and backset to match the correct replacement size – usually 64mm or 76mm for UK doors.
What’s the main advantage of a 3 lever over a 2 lever lock?
What’s the main advantage of a 3 lever over a 2 lever lock?
The extra lever provides more key combinations and improved resistance to picking, making it more secure for internal use.
Do you offer 3 lever locks in different finishes?
Do you offer 3 lever locks in different finishes?
Yes – options include polished brass, chrome, and satin chrome to match your door furniture and handles.
UK-Wide Supply of Quality Architectural Ironmongery
Over 40 Years of Expertise in Door Hardware
We have over four decades of experience supplying architectural ironmongery across the UK, partnering with trusted brands such as From The Anvil, Carlisle Brass, Heritage Brass, and Frelan Hardware. Available for delivery to London, Manchester, Birmingham, Leeds, Glasgow, and nationwide.