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PATENT PROTECTED PRIMUS KEY
The Primus key with its unique patented "Side-Bit Milling " is rigidly controlled. Only the Schlage Factory cuts the side-bit milling on special key blanks. These keys are issued to specific Primus center locksmiths for the duplication of keys. This feature successfully protects against unauthorized duplication of keys.
DUAL LOCKING CYLINDERS:
In addition to a conventional pin tumbler mechanism, Schlage primus cylinders use five "fingerpins" which interface with the side-bit milling to unlock a separate sidebar assembly. The combination of these two locking technologies, operated by a single Primus key, is the basis of the "Dual-locking" cylinder and virtually eliminates lock picking.

EASY TO INCORPORATE INTO AN EXISTING SCHLAGE KY SYSTEM
Primus cylinders are compatible with most Schlage key systems. A simple and cost effective way to enhance security and key control.
SINGLE KEY CONTROL
Primus cylinders are available in "High Security" U.L. listed and Controlled Access versions. The U.L. listed cylinder features strategically placed hardened rods to resist drilling for installations where concerns of physical attack is a consideration. Both versions use the same dual-locking mechanism and unique Primus key. For flexibility, Primus cylinders can be combined with conventional schlage pin tumbler cylinders in one "single Key" systems.
For added security in key control, the Primus key is engineered to enter a selected standard Schlage cylinder. But the standard key will no enter the Primus cylinder. This feature allows a single key system without compromising security or key control.

I.D. CARD CONTROL
Only authorized Primus Center Locksmiths have access to the special side-bit milled key blanks. Keys and service are only available to the owner or manager upon presentation of the appropriate Primus I.D. card.
FLEXIBILITY
Quality Schlage locks with Schlage high security cylinders. primus cylinders are available for Schlage A, B, D, E, H, and L series locks as well as mortise, rim and interchangeable core cylinders and padlocks.
The Schlage Primus system can meet any of your keying requirements from the simplest keying to the most complex masterkey systems with safety, security, and key control.
Schlage cylinders can replace the existing cylinders in the following:

Schlage Primus cylinders are available in the floowing finishes:
Mortise and Rim cylinders
605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 613 oil rubbed bronze, 625 bright chrome, 626 satin chrome.
Core Units
606 satin brass, 626 satin chrome.