The JM29 Deadbolt Provides a high level of security. They can be keyed alike to the 5 lever range of mortice locks.
 
Backset: 60mm
Keys included: 2
Keyed alike or random keyed (assumed keyed alike for multiple quantities).
 
MATERIALS
Case: Galvanneal
Bolts: Brass
Curtain: Restricts access to the Lock
Levers: 5, Pick Resisting, Brass
Differs: Approximately 1000
Key Blanks: No. 747
Kits: Brass or Stainless Steel
 
Made in Tasmania, Australia
 
Also, for rebated double doors you will need to purchase the rebated variant of this lock rather than this one for single & non-rebated double doors, click here (JM29R) to view this item.