Comes standard with 6 pin Schlage C cylinder</br>Meets ANSI/BHMA A156.2?? Series 4000 standards for entry sets</br>UL listed?? meets UL 3 hours fire rating</br>Cylindrical lock housing</br>10 Year warranty</br></br>Product Description</br></br>Commercial grade locksets are engineered to provide years of dependable service in demanding commercial industrial environments. Replaces all brands of commercial door hardware.  Commercial lever lockset??  type privacy lever??  style satin chrome finish??  function privacy. Grade 2 material steel for door thickness 1-3/8-inch  to 1-3/4 -inch.   Backset 2-3/4-inch.   Crossbore size 2-1/8-inch  2-3/4-inch  x 1-1/8-inch.   T-strike required.   Door thickness 1-3/8-inch  to 1-3/4-inch.   Standards ANSI/BHMA A 156.2 fire rated 3 hours.</br><br/>http://www.amazon.com/gp/product/B00164L2AQ