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• Center Drive double hook mortise lock with no anti-slam pin
  
• Designed for Handleset thumb turn in the center of handle. 
  
• If your handle has the thumbturn other than center this will not work
  
• Slam retraction hooks point outward
  
• Width: .55 inches
  
• Length: 10.31 inches
  
• Outside screw spacing: 9-7/8 inches