
When I began in 1983, the most common lock found on people's doors was the common nightlatch. Key operated on the outside with a turnbutton inside.
Not terribly secure but very efficient in operation. Lockwood Australia, owned at the time by Ogden Industries, had begun to change the face of the residential door market with the introduction of the Lockwood 001 deadlatch.
Significant improvements over the last 30 years have seen this product evolve and continue to be the most sought after physical door security product in the southern hemisphere.
The current version is designed to comply with the international building code's escape laws. Using an upgraded mechanism that enables the interior knob to be unlocked with the outside keyhole and for the inside knob to display it's locked or unlocked condition with a visible notification. The lock still provides for double cylinder protection. It installs to the door rim mounted (surface mounted). Is held on with 6 screws to the door. The strike plate is also surface mounted held on with 6 long screws that actually prevent door frame casing failure.
This product is still the leading deadlock on the market in the southern hemisphere and has proven itself repeatedly as the best of brands for it's function, design, and ease of use.
Now if we just convince northern hemispherians to use the product, perhaps the crime rate here would decrease.
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