- 20% off
From The Anvil
From The Anvil - SS 2½" 5 Lever BS Sashlock KA
SKU: ANVIL-91825
Sale price £37.14 (Inc. VAT) Normal Price: £46.43 £30.95 (Ex. VAT)Unit price /Unavailable - 20% off
From The Anvil
From The Anvil - SS 3" 5 Lever BS Sashlock KA
SKU: ANVIL-91826
Sale price £37.14 (Inc. VAT) Normal Price: £46.43 £30.95 (Ex. VAT)Unit price /Unavailable - 20% off
From The Anvil
From The Anvil - PVD 3" Heavy Duty BS Sash Lock
SKU: ANVIL-91827
Sale price £35.11 (Inc. VAT) Normal Price: £43.88 £29.26 (Ex. VAT)Unit price /Unavailable - 20% off
From The Anvil
From The Anvil - PVD 3" BS Heavy Duty BS Sash Lock KA
SKU: ANVIL-91829
Sale price £49.12 (Inc. VAT) Normal Price: £61.40 £40.93 (Ex. VAT)Unit price /Unavailable - 20% off
From The Anvil
From The Anvil - PVD 2½" BS Heavy Duty Sash Lock KA
SKU: ANVIL-91828
Sale price £49.12 (Inc. VAT) Normal Price: £61.40 £40.93 (Ex. VAT)Unit price /Unavailable York Security
York - British Standard 5 Lever Sashlock 2 1/2" Satin Chrome Finish
SKU: marcus-yk-bssl29
Sale price £28.70 (Inc. VAT) Normal Price: £35.88 £23.92 (Ex. VAT)Unit price /UnavailableYork Security
York - British Standard 5 Lever Sashlock 3" Brass Finish
SKU: marcus-yk-bssl37
Sale price £28.70 (Inc. VAT) Normal Price: £35.88 £23.92 (Ex. VAT)Unit price /UnavailableEurospec
Eurospec - Contract 2 Lever Sashlock Rebated 64mm - Electro Brassed
SKU: cb-lse5225eb-reb
Sale price £12.67 (Inc. VAT) Normal Price: £15.84 £10.56 (Ex. VAT)Unit price /UnavailableEurospec
Eurospec - Contract 2 Lever Sashlock Rebated 64mm - Nickel Plate
SKU: cb-lse5225np-reb
Sale price £12.67 (Inc. VAT) Normal Price: £15.84 £10.56 (Ex. VAT)Unit price /UnavailableEurospec
Eurospec - Contract 2 Lever Sashlock Rebated 64mm - Satin Nickel
SKU: cb-lse5225sn-reb
Sale price £12.67 (Inc. VAT) Normal Price: £15.84 £10.56 (Ex. VAT)Unit price /UnavailableEurospec
Eurospec - Contract 3 Lever Sashlock Radius 64mm - Nickel Plate
SKU: cb-lse5325np-r
Sale price £7.97 (Inc. VAT) Normal Price: £9.96 £6.64 (Ex. VAT)Unit price /UnavailableEurospec
Eurospec - Contract 3 Lever Sashlock Radius 64mm - Satin Nickel
SKU: cb-lse5325sn-r
Sale price £7.97 (Inc. VAT) Normal Price: £9.96 £6.64 (Ex. VAT)Unit price /Unavailable

Selecting the Right Standard Mortice Key Sash Lock
Lever Counts, Security Grades & Installation Guidance
Standard mortice key sash locks are available in 2 lever, 3 lever, and 5 lever variations to suit security needs from light-duty internal use to insurance-approved external protection.
- 2 lever – basic privacy and light security for internal doors like bedrooms or storage rooms.
- 3 lever – added key variation and strength for busier internal doors or interlinked office spaces.
- 5 lever – high security, often BS3621-rated, for front, back, and side timber entrance doors.
Typical case sizes include 64 mm (2.5") and 76 mm (3"), selected based on door thickness and handle placement. Match your lock with coordinated door furniture, door handles & knobs, and standard profile escutcheons for a consistent look.
We also recommend exploring architectural ironmongery, premium accessories, and window furniture to complete your installation.
Need Help Choosing the Right Lock?
Expert Support for UK Door Security
Not sure which lever count or case size to choose? Our experts provide guidance on internal vs external use, British Standard compliance, and finish matching to achieve a cohesive look. We supply nationwide—including London, Manchester, Birmingham, Glasgow, Bristol—with competitive delivery times.
If you can’t find what you’re looking for, contact us and we’ll assist you.
Frequently Asked Questions
What is a standard mortice key sash lock?
What is a standard mortice key sash lock?
A standard mortice key sash lock is recessed into the edge of a door and combines a handle-operated latch for everyday use with a key-operated deadbolt for secure locking.
Should I choose 2, 3 or 5 lever?
Should I choose 2, 3 or 5 lever?
2 lever is suitable for low-risk internal doors, 3 lever offers more key variations and moderate security, and 5 lever is best for external doors—often BS3621 approved for insurance.
What size lock should I choose: 64 mm or 76 mm?
What size lock should I choose: 64 mm or 76 mm?
64 mm (2.5") is compact and suits most internal doors. 76 mm (3") gives a larger backset to position the handle further from the door edge—often preferred for entrance doors.
Are 5 lever sash locks insurance approved?
Are 5 lever sash locks insurance approved?
Look for BS3621 in the product specification or on the lock faceplate—this standard meets UK home insurance requirements for external timber doors.
Trusted UK Supplier for Over Four Decades
Quality Mortice Locks from Leading Brands
We stock trade-trusted brands including From The Anvil, Carlisle Brass, Heritage Brass, and Frelan Hardware. Choose finishes like satin chrome, polished brass, or matte black to match your door furniture and door handles & knobs. We deliver nationwide—from Cumbria to London, Manchester, Birmingham, Leeds, Bristol, and Glasgow—helping homeowners, contractors, and designers achieve secure, stylish results.