G-U / Ferco SECURY 3-Point Automatic latching with 1 deadbolt and 2 Latchbolts Used with Lever type handles.

Simply Close the Door!
As soon as the door pulled shut, the Automatic latch bolts instantly throw 20mm and are secured to prevent them being forced back.
Turning the key or the inside knob, it will engage the deadbolt and lock the top and bottom latchbolts to become a 3 dead bolt locking system.

Specifications:
Backset: 2-3/8 inch (60mm)
Cylinder Position: Key Above Lever
Cylinder Type: American (uses flat tail piece)
Faceplate Width: 5/8 inch (16mm)
Extension End: Radius, Rounded end

Overall Length 8-0 Door: 74-27/32 inch (1901mm) 74.84 inch
Upper Latchbolt: 43-3/8 inch (1102mm) 43.39 inch
Lower Latchbolt: 21-3/8 inch (543mm) 21.38 inch
Handle Height: Adjustable
Deadbolt Throw: 1 inch (24.9mm) 0.984 inch
Latchbolt Length: 3/4 inch (20mm) 0.787 inch
Handle to Cylinder PZ: 3-5/8 inch (92mm) 3.62 inch
Spindle Hub: 5/16 inch (8mm) 0.315 inch Square
Material: Stainless Steel
Label Marking: 6-34912-60-0-8B / 1604BIF

Handing: Reversible;
1. Push lever down and hold
2. Depress slot behind latch and pull latch out (easier with 2 people)
3. Rotate latch and push back in, Will click when fully locked in place
4. Test Operation of Lock
Be sure to operate lock to verify that it functions properly before installation.
The spring latch should retract flush with faceplate if installed correctly.