MA551 - Holdback lock

• Latch bolt operated by lever from either side except when outside lever is locked from outside by key.
• Latch bolt can be locked in a retracted position by key.
• When outside lever is locked, latch bolt is retracted by key from outside or by operating inside lever unless latch bolt has been locked in a retracted position.
• Auxiliary dead latch.  
  Note: Chassis is handed.