- LockAlert status indicator that shows the Lockset mode at a glance
- Automatically unlocks the internal knob upon entry minimising the risk of being locked in.
- Cut-resistant stainless steel bolt
- 11 concealed anchorage points and a door frame strengthener that combine to offer high security protection
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.