Two Point Gemini II Locks

Mortise Locks

Two Point Gemini II Locks

The Gemini II 2-point mortise locks has set the standard for 2-point locking in the sliding door industry. Gemini II locks are compatible with all industry standard handle sets and features opposing hooks that can be adjusted individually for proper keeper engagement. We offer a variety of keepers that are compatible with the Gemini II 2-point lock system to accommodate any application. There is also a “keeper locator” available to help ensure proper operation of the lock and keeper.

The Gemini II lock has been built to help customers meet industry standard forced entry requirements with the ability to withstand 1,500 pounds of force. The lock also features an anti-slam pin that prevents damage to the door or locking system hooks by not allowing the hooks to extend unless the door is closed against the frame.

product highlights

  • Recommended for:  aluminum, composite, vinyl, and wood
  • Lock can withstand up to 1,500 lbs. of forced entry
  • Hooks oppose one another to prevent panel lift
  • Individual adjustment of hooks
  • Anti-slam button to prevent false lockup
  • Faceplate options to fit any application
  • Steel and stainless-steel material options
  • Keepers available in various heights and material choices
  • Lock actuator is centered for 3-hole machining or offset by ¾ inches for 4-hole machining
  • Keeper Locator available to ensure good alignment between the lock and keeper in the application


Specifications (View full specifications in Excel or PDF )

Part # Part Description Faceplate Mounting Hole Distance Backset (From Mounting Surface)
2143851 Gemini II Mortise Lock Short Faceplate/Flush Mount 9.87" 0.77"
2150609 Gemini II Mortise Lock Long Faceplate 11.00" 0.77"
2153113 Gemini II Mortise Lock No Faceplate 9.87" 0.77"
2154018 Gemini II Mortise Lock Recessed Faceplate 12.00" 1.25"
2154506 Gemini II Mortise Lock Short Faceplate/Flush Mount 9.87" 0.77"
2157842 Gemini II Mortise Lock Short Faceplate/Flush Mount 9.87" 0.77"
2161572 Gemini II Mortise Lock Recessed Faceplate 12.00" 1.25"
2169122 Gemini II Mortise Lock Long Faceplate 11.00" 0.77"
2174251 Gemini II Mortise Lock Short Faceplate/Flush Mount 9.87" 0.77"
2174788 Gemini II Mortise Lock Long Faceplate (16mm) 11.00" 0.77"
2178022 Gemini II Mortise Lock Recessed Faceplate 12.00" 1.13"
2180418 Gemini II Mortise Lock Long Faceplate 11.00" 0.77"
2184673 Gemini II Mortise Lock Long Faceplate 11.00" 0.77"
2187992 Gemini II Mortise Lock No Faceplate 9.87" 0.77"
2188527 Gemini II Mortise Lock Recessed Faceplate 12.00" 1.13"
ADH-3029-00 Gemini II Mortise Lock No Faceplate 9.87" 0.77"
ADH-3029-84 Gemini II Mortise Lock No Faceplate 9.87" 0.77"
Stainless Steel
Stainless Steel