Locking Inside Rotary Latch with "Torsion Spring Activation"

Application: Works with Lever Handles
Center to Center Hole Spacing: 1-3/4 inch (45mm)
Width:  1-1/4 inch (31.75mm)
Length: 2-1/2 inch (63.5mm)
Height from Door Face: 2-1/4 inch (57.15mm)
Markings: US Pat 7.134.620 / 7,134,690
Finishes Available:
Black
White

Additional Information: 
Can be replaced with non-locking 304004 or 303020 with interior Deadbolt