Wednesday, July 18, 2007Security in Doors Just to remind you, we think in order to complement the light-duty security of a cylinder lock, exterior wood doors should be fitted with a separate dead bolt, as we11.A dead bolt, which is operated by a key on the outside and a thumb turn on the inside, is tougher to break through because it has a longer throw (horizontal travel), which engages the jamb more securely than the bolt of a cylinder lock. A dead bolt is also more resistant to smashing than a knob-type lock because its internal mechanism is housed entirely inside the wood door. Deadbolts for glass doors should be key-operated from both sides so a burglar can't simply break the glass and use the thumb turn to get in.
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