- Always Feel Secure - Safety Release™ allows easy exit during emergencies, while LockAlert® provides instant visual feedback so you know your door’s status at a glance.
- Tough Where It Counts - Engineered with a cut-resistant stainless steel bolt and 11 concealed anchorage points for dependable, high-level protection.
- Designed for Real Life - Enjoy the hold back function that keeps your door in passage mode when you need it.
- Built to Standards You Can Rely On - Certified to meet Australian Standard AS4145.2-2008 | SL7D8C6, delivering proven durability and strength.
The Lockwood 001 Double Cylinder Deadlatch is a high-security knob deadlatch for inward opening entry doors. Key operation from both sides gives maximum security, with hold-back function for passage use when you're at home. 11 concealed anchorage points plus a door frame strengthener resist forced entry. LockAlert® shows lock status at a glance, and SafetyRelease™ automatically unlocks the inside knob on key entry from outside. Built around a cut-resistant stainless steel bolt with 18mm projection, brass 5-pin cylinders (78,000 key combinations), and Kinetic Defence® bump and pick resistance. Supplied with an open in (timber framed) strike to suit. Fits doors 30-45mm thick. Tested to AS4145.2-2008 (SL7 security, D8 durability). Backed by Lockwood's 25-Year Mechanical Warranty.