If on the other hand you have a medeco mul t lock assa or abloy you ve got a true high security deadbolt.
Mul t lock deadbolt review.
High security deadbolt system for commercial and residential doors.
The mul t lock hercular deadbolt is simply the best deadbolt on the market today having matched or exceeded the toughest industry tests.
Mul t lock cronus high security grade 2 single cylinder dead bolt w thumb turn 2 3 8 or 2 3 4 adjustable backset for commercial and residential metal or wood doors antique brass 4 5 out of 5 stars 17.
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Operation 90 key rotation throws the bolt 1 towards the frame interlocking two hardened ball bearings with the strike to increase jimmying resistance.
These deadbolts are available in a variety of formats including single double and.