The ML2000 Series Grade 1 Mortise Lock is designed to meet the rigors of high trasffic commercial, institutional, industrial and government applications. Constructed of heavy gauge steel, the lockbody features our patented quick reversible latchbolt and a 1 stainless steel deadbolt. A wide variety of trim designsand functions with a 10 year warranty lend to the ML2000's versatility and reliability, making it the ideal choice for use in offices, schools, hospitals, hotels and other high use applications."