Description
Yale B-M550-CH-78 5 Lever Mortice Sashlock, High Security, Chrome Finish, 3 Inch/76 mm
About this item
- Five lever sashlock ideal for exterior wooden doors
- Lock case depth 76 mm with hardened steel anti-drill plates and 20 mm anti-saw dead bolt for extra protection against attack, pierced to accept bolt through furniture
- Latch bolt is operated by lever door handles and can be easily reversed to suit any door, 20 mm anti-saw dead bolt locked and unlocked from either side by key
- Boxed steel strike plate to insert into the door frame for high security reinforcements
- Supplied with two standard Yale keys and fixing pack
From the manufacturer
Security for all doors
Mortice locks not only come in two different styles, but also in different security strengths. We recommend the 5 Lever British Standard approved mortice lock that ensures maximum protection for your main access points.
Style & Colour
The two types of mortice locks you may find are sashlock, that ensures keeping the door closed without locking it and deadlock, which only ensure locking. Also, choose from the two available finishes, Polish Brass or Polished Chrome, to fit the style of your home or with door accessories.
Case Size & Measurements
Case sizes are available in 64mm (2.5 inch) for a 45mm door backset and 76mm (3 inch) a 57mm backset to fit a variety of doors. In order to get the backset’s dimension, measure the distance from the edge of the door to the centre of the key hole.
