Off Center Key lock, exterior pull for use with wood, vinyl , fiberglass or aluminum sliding glass doors. 
Mounting dimensions, including 3-15/16 inch cross-hole spacing and used with off center key or off centered  actuator location Typically found on a 4 hole pattern.
Compatible with all Keynetic™, and other sliding door handles and locks.

Door Thickness: 1-3/4 inch
Screw Hole Spacing: 3-15/16 inch (100mm)
Key Cylinder Location: NOT centered, Offset 3/4 inch
Keyway: Weiser, Kwikset 5 pin
Handed: No, Fits left or right hand doors
Material: High-pressure zinc die-cast

Priced and sold each.

NOTE: The off center thumb / Key locks usually have a 4 hole bore in door panel - see additional images