Frequently Asked Questions

3540 Series Bolt Suitablity Table

LOCKWOOD LOCK 3541-T4SC L/CYL CYL TURN (591F-1NCSC)

Product Code: 3541T4NCSC

This product is a special order (BTO) and is not returnable.

Suits sliding or hinged doors.
28mm sintered stainless steel bolt.
With cylinder turnsnib.
23mm backset.
Aluminium fabricator face plate 155mm x 25mm.
Chamfered bolt for better self latching.
Positive deadlocking action.
Can be adapted to suit most function with the addition of appropriate cylinders and turns.
Suits hollow stile door sections with 28mm internal width and 58mm maximum external width.
Incorporates a 570 oval cylinder (not included).
Compatible to most restricted keying systems.
Supplied as fabricator pack for aluminium doors, no strike included.
Supplied less escutcheon.
Finished in satin chrome.

Brand	LOCKWOOD
Fabricators Face Plate	Yes
Includes Strike	No
Includes Turnsnib	Yes
Backset	23 mm
Face Plate Length in mm	155
Face Plate Width in mm	25
Locking Bolt Length in mm	28
Mortice Lock Case Depth in mm	37
Mortice Lock Case Height in mm	181
Uses Cylinder/Plug Type	570 Oval
Assembly Form	Less Cylinder

Lockwood 3540 Series Mortice Locks