Plastic dead bolt lock. RH and LH application.

塑料固定式插销锁，左右门均适用。

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Open in Emergency: Under no control. The door can be opened even if the dead bolt is locked.

应急开启：不受任何控制，即使方舌反锁，也能开门。

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International standard five-bolt structure: With the prying-resistant trigger bolt and indoor locking dead bolt for security and the mechanical key for emergency access;

国际标准五锁舌结构：有防撬保险舌和室内反锁大方舌，具机械钥匙应急开门；

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Corbett said it may be difficult to get out a dead-bolt door, or some doors might be blocked by equipment or boxes.

CNN: Be ready for emergency at a crowded public gathering

Apart from its merits as a hops-delivery system, it sports the Dead's lightning-bolt skull logo, which can't help but encourage responsible debauchery, as well as occasional flashbacks.

WSJ: An Enduring Tradition