Штырь используемый для фиксирования двери в закрытом положении называется - Deadbolt
А способ блокировки этим предметом называется - Deadbolt Lock

ADVANTAGES OVER THE STANDARD DEADBOLT LOCKS


Double the security. You can install this product over your existing deadbolt lock for extra protection.


Standard deadbolt locks may be forcibly unlocked using a crow bar or similar object but due to the location of the upper deadbolt, the dual deadbolt lock is almost impossible to be forcibly open in this manner.


The dual deadbolt lock will be the burglar’s #1 enemy because it takes more time to break into a house with two deadbolts instead of one. If he is succesful in prying the side lock he still has to deal with the upper lock which will be much more tougher to open. The burglar has to decide if it’s worth the risk as his chances of getting caught rise substantially with each extra minute he spends trying to break into a house.

PRODUCT FEATURES


The unique dual deadbolt locking mechanism gives you the utmost protection against forceful physical attack.


Maximum security with standard throw deadbolt extending into the side door frame and upper frame.


One keystroke opens both locks.


Reversible for right or left handed doors.


On the outside of the door the lock looks like a standard lock.


There is no other product currently on the market that is ready made to fit the regular deadbolt lock.

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