ACT British Standard 5 Lever Mortice Deadlock

Product Information

The ACT British Standard 5 Lever Mortice Deadlock is a non-handed mortice deadlock designed for use in residential and commercial door security applications requiring compliance with British Standard BS3621:2007. Manufactured by ACT, this lock provides reliable key-operated locking with a robust 5-lever mechanism suitable for securing timber doors where enhanced security is essential. Its conformity to BS3621 ensures it meets recognised standards for key security and resistance to common forced entry methods.

This mortice deadlock features an 80mm case height and a 48mm centres measurement, which refers to the distance between the keyhole centre and the spindle follower. The faceplate measures 120mm in length and 12mm in width, designed for surface fitting within the door edge recess. The lock includes an 8mm follower, compatible with most standard lever handles or thumbturns, allowing for secure operation of the latch mechanism. The lock case is equipped with a hardened steel plate to provide drill resistance, enhancing protection against attack and forced entry attempts.

Key Features

• British Standard BS3621:2007 certified, ensuring compliance with insurance requirements for security
• Case height: 80mm, suitable for standard mortice lock pockets in timber doors
• Centres: 48mm, critical for matching door handle and keyhole alignment
• Faceplate dimensions: 120mm length x 12mm width for mortice fitting
• 5-lever mechanism providing secure deadlocking action
• Non-handed design suitable for left or right-handed doors
• 8mm follower to accommodate standard lever handles or thumbturns
• Hardened anti-drill plate incorporated for enhanced security
• UKCA and CE marked, demonstrating conformity with UK and EU standards
• Supplied boxed for trade use

Fitment & What to Check

When installing the ACT British Standard 5 Lever Mortice Deadlock, confirm the door’s existing lock pocket dimensions align with the 80mm case height and 120mm faceplate length to avoid additional carpentry work. The 48mm centres dimension must be checked to ensure compatibility with existing door furniture and key escutcheons. Verify that the door thickness and handle spindle size match the 8mm follower specification to guarantee proper operation. As the lock is non-handed, it can be fitted to doors opening either inwards or outwards and on either side without modification.

Common Ordering Mistakes

• Ordering locks without confirming the 48mm centres can lead to incompatibility with existing handles and keyholes
• Neglecting to verify the door’s mortice pocket dimensions may result in an ill-fitting lock case or faceplate
• Assuming handing is required—this lock is non-handed and suitable for all door orientations
• Overlooking the follower size when selecting complementary door handles or thumbturns

Sizes

• Manufacturer: ACT.
• Case Height: 80mm.
• Centres: 48mm.
• Faceplate Length: 120mm.
• Faceplate Width: 12mm.
• Follower: 8mm.
• Handing: Non Handed.
• CE Marked: Yes.
• British Standard: BS3621:2007.
• Backset: Select from drop-down
  How do I measure the backset?
• Case Width: Select from drop-down
• Finish: Select from drop-down
• UKCA: Yes.
• Certifire: No.
• Fire Rated: No.
• Can Be Keyed Alike?: No.
• Type: Mortice Deadlock.
• Packaging: Boxed.
• Additional Info: Has a hardened plate to prevent drill attacks.

Operation

The ACT British Standard 5 Lever Mortice Deadlock is a non-handed mortice deadlock designed for use in residential and commercial door security applications requiring compliance with British Standard BS3621:2007. Manufactured by ACT, this lock provides reliable key-operated locking with a robust 5-lever mechanism suitable for securing timber doors where enhanced security is essential. Its conformity to BS3621 ensures it meets recognised standards for key security and resistance to common forced entry methods.

This mortice deadlock features an 80mm case height and a 48mm centres measurement, which refers to the distance between the keyhole centre and the spindle follower. The faceplate measures 120mm in length and 12mm in width, designed for surface fitting within the door edge recess. The lock includes an 8mm follower, compatible with most standard lever handles or thumbturns, allowing for secure operation of the latch mechanism. The lock case is equipped with a hardened steel plate to provide drill resistance, enhancing protection against attack and forced entry attempts.

Key Features

• British Standard BS3621:2007 certified, ensuring compliance with insurance requirements for security
• Case height: 80mm, suitable for standard mortice lock pockets in timber doors
• Centres: 48mm, critical for matching door handle and keyhole alignment
• Faceplate dimensions: 120mm length x 12mm width for mortice fitting
• 5-lever mechanism providing secure deadlocking action
• Non-handed design suitable for left or right-handed doors
• 8mm follower to accommodate standard lever handles or thumbturns
• Hardened anti-drill plate incorporated for enhanced security
• UKCA and CE marked, demonstrating conformity with UK and EU standards
• Supplied boxed for trade use

Fitment & What to Check

When installing the ACT British Standard 5 Lever Mortice Deadlock, confirm the door’s existing lock pocket dimensions align with the 80mm case height and 120mm faceplate length to avoid additional carpentry work. The 48mm centres dimension must be checked to ensure compatibility with existing door furniture and key escutcheons. Verify that the door thickness and handle spindle size match the 8mm follower specification to guarantee proper operation. As the lock is non-handed, it can be fitted to doors opening either inwards or outwards and on either side without modification.

Common Ordering Mistakes

• Ordering locks without confirming the 48mm centres can lead to incompatibility with existing handles and keyholes
• Neglecting to verify the door’s mortice pocket dimensions may result in an ill-fitting lock case or faceplate
• Assuming handing is required—this lock is non-handed and suitable for all door orientations
• Overlooking the follower size when selecting complementary door handles or thumbturns