(Lock Functions)
 

MORTISE LEVER & KNOB LOCKSETS Yale's new 8800 Series of Grade 1 mortise locks is designed to change the way you look at door hardware. The 8800 combines the dependable quality of the Yale brand with new features and functions never available before on a Yale mortise lock, including the patent pending quick Reversible Latchbolt and the new Double Cylinder Intruder Classroom Security Lock. Click here for Full 8800 series catalog  (PDF)
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5400 Series -Knobs
 (Grade 1) 
When demanding the highest standard of product performance in even the toughest industrial applications, look no further than the Yale5400Series Heavy-Duty Grade 1 cylindrical locksets.

Yale's high-quality key-in-knob locksets have withstood the test of time by offering the finest cylindrical lock mechanisms available. Even today, 5400 Series locksets are assembled with superbly engineered components and constructed with high-grade materials for long-lasting reliability.

Manufactured for the industrial, commercial and institutional markets, 5400 Series locksets feature security, dependability and versatility in attractive designs and finishes that fulfill all decorative requirements and blend with any architectural decor.
Click here for Full 5400 series catalog  (PDF)

         5400LN  Series - Levers
                   (Grade 1)                

Designed for industrial, commercial and institutional use, Yale's 5400LN Series heavy-duty cylindrical lockset offers no compromise when it comes to rugged reliability and performance.  With key construction features, such as our patented Free wheeling lever mechanism, wear-resistant chassis plates, heavy-duty lever return springs and through-bolting, this Grade 1 trendsetter proves time and again why it's the favorite among architects and building owners who demand the highest standard of product quality.

The 5400LN features three aesthetic lever designs and a diverse line of eleven architectural finishes, including three PVD lifetime finishes, which allow the freedom of enhancing any decor. with a lifetime warranty against lever sag and lever spring breakage, you'll never have to worry about your intended attraction becoming an unintended distraction.      
Click here for Full  5400LN series catalog  (PDF)
 

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5300 Series - Knobs
(Grade 2)
Yale 5300 Series standard-duty cylindrical locksets offer a unique combination of positive security, trim design variety and quality construction.  They are designed for residential and various commercial applications and are the choice of engineers worldwide.

The 5300 Series key-in-knob locksets provide Yale pin-tumbler cylinder security, and are available in a wide choice of keying options: keyed different, keyed alike, construction keying and master-keying.  They can also be made compatible with other Yale keyed  security systems.

Yale 5300 series locksets are available in a wide variety of functions, trim designs and finishes.  A selection can easily be made to meet the intention of most any designer or engineering/security specialist.
Click here for full grade 5300 series catalog(PDF)
 

                   5300LN Series - Levers
      (Grade 2)
                     Thanks to state-of-the-art engineering and innovative thinking, Yale's 5300LN is truly a source of inspiration.  With three lever designs and a choice of five different finishes,  you've got the freedom and ability to match any decor.
But looks aren't everything. This revolutionary Grade 2 cylindrical lockset boasts patented design features such as a vandal-resistant Free wheeling lever mechanism and adjustable door thickness that makes installation a breeze.  Through-bolting gives the 5300LN a secure fit that resists shaking and rattling. And with a lifetime warranty against lever sag, you never have to worry about your pleasing aesthetics becoming a displeasing eyesore.

Click here for full  5300LN series catalog(PDF)