by zeke79 » 6 Dec 2008 17:58
I have always been fond of the design astheticly and love the mechanical design of the cylinder. As far as the interior screws, there are several ways to fix the problem so that if someone breaks in through a window they cannot remove the lock and use the door to cart out your belongings. A pan head cap screw with allen head can have tight fitting ball bearings drove into them. Once driven in they are nearly impossible to remove. This to me would be hardly noticeable and would fix the problem. Abloy protec double cylinder deadbolts are this way though the socket head cap screws and ball bearings are hidden by a cover plate.
Another thing one could do is simply use the proper locktite compound on the screws before installing them. The proper locktite would be the permanent compound used for things like interference fit alignment dowels on manufacturing dies etc. This way all you would accomplish with a screw driver is stripping the heads out of the screws securing the lock.
As said, there are many ways to secure the lock more effectively from the insides. In fact using the two methods above together would just about ensure the fastening screws could never be removed and the ball bearings in the head heads would prevent drilling the fasteners out for the most part.
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