Whitco Tasman Security Screen Door Lock, Made in Australia, uses single or double keyed mortise cylinder - Not Included

Tasman MK3 Escape Lock  for Hinged Security and Screen Doors 

Backset: 1-1/8 inch (28mm)
Lock Body Width: 1-1/2 inch (38mm)
Faceplate Width: 5/8 inch  (16mm)
Faceplate Length: 7-1/4 inches (185mm)
Faceplate Screw Hole: 6-3/4 inches . (173mm)
Faceplate Color: Black

Escutcheon Plate Width: 1-1/4  inch (32mm)
Escutcheon Plate Length: 7-1/16 inch (180mm)
Escutcheon Plate Screws: 5-1/16 inch (127mm)
Base Material: Zinc
Faceplate Color: Black

Markings: Whitco 7148 Logo, 7149 Plain, 7150, PAT.  APPL
Keyed cylinder is not included with this lock.
The MK2 and MK3 are different size plates and lock case. 

IMPORTANT NOTE:
The screws are tri-lobular (self tappers) and are designed to cut their own threads in the lug on the handle set plates as they are screwed together.
The lug doesn’t have a thread cut into it from the factory, the screw cuts the thread as it is tightened. This can help with slight misalignment issues. (see image 5)

Related Parts:
397092 - Keyed Profile Cylinder Key / Key, Polished Chrome
397094 - Profile Cylinder Key / Thumb, Polished Chrome
397095 - Keyed Double Cylinder, Polished Chrome