Lockwood Synergy 3570 Series Cylinder Mortice Nightlatch — Satin Chrome or Chrome Plate
The Lockwood Synergy 3570 Series Nightlatch is a heavy duty mortice lock designed for industrial, commercial, institutional, and public buildings. Operated by key outside and turnknob or key inside, the nightlatch locks automatically when the door is closed. Built to the rigorous Synergy 3570 platform, it combines strength, durability, and fire safety compliance.
Warranty
Key Features
- Nightlatch locks automatically when door is closed
- Operated by key outside, turnknob or key inside
- Heavy duty Synergy 3570 Series for high-use environments
- High purity zinc alloy case with stainless steel cover plates
- 15mm stainless steel deadlatch bolt with auxiliary bolt for security
- Fire tested up to 4 hours to AS1905.1-2005
- Durability Level D8 and Security Level S7 (S8 available on request) per AS4145.2008
- Compatible with most Lockwood escutcheons, furniture and electric strikes
Specifications
- Item Code: 3570 Series
- Backset: 60 mm standard (89mm & 127mm available)
- Bolt: 15 mm stainless steel deadlatch with auxiliary latch
- Deadbolt (other functions): 19 mm stainless steel
- Case: Zinc alloy case, stainless steel or brass cover plates
- Springs: High grade corrosion-protected spring steel
- Door Thickness: 32–50 mm (35.5 mm for SCEC)
- Finish Options: Satin Chrome (SC), Chrome Plate (CP), Polished Brass (PB)
- Standards: AS4145.2008 S7/D8; fire tested to AS1905.1-2005
Keying
- Bump-resistant 5-pin tumbler cylinder
- Supplied individually keyed with 2 keys
- Approx. 78,000 key combinations
- Restricted and master keying available
What's In The Box
- Lockwood Synergy 3570 Nightlatch body
- Standard 5-pin brass cylinder set
- Mounting accessories
- Fixing screws
- Installation instructions
Suitable Uses
- Heavy traffic doors in schools, hospitals, hotels, clubs
- Industrial & commercial entry points
- Institutional or public building security doors
Available Finish Options
-
Satin Chrome
3570SC -
Chrome Plate
3570CP
Mechanical Variants
Download PDF Resources
![]() |
Lockwood Synergy Mortice Locks Catalogue |
![]() |
Lockwood 25-Year Mechanical Warranty (conditions apply) |