Lockwood 3770 MkII Mortice Nightlatch — Full Radius End Faceplate, 60 mm Backset, Satin Stainless (SSS)
The Lockwood 3770RSS MkII is a mortice nightlatch with a full radius end faceplate and standard 60 mm backset. Designed for heavy-duty use in commercial and institutional applications, it auto-latches on closing and operates by key outside and key/turnsnib inside.
Estimated Warehouse Dispatch: 11 Days
Non-Returnable Item: This product cannot be returned once purchased
Key Features
- Nightlatch function: door auto-latches when closed; key outside, turnsnib/key inside.
- Full radius end faceplate version of the 3770 MkII nightlatch.
- 60 mm backset standard (this model).
- Heavy-duty mortice case for commercial environments.
- Through-fixing provision for roses/escutcheons for robust furniture anchoring.
- Compatible with Lockwood 570 cylinders and restricted systems.
- Reversible handing; suits 32–50 mm door thickness.
Fire Rated
- Tested up to 4 hours on fire door assemblies (per manufacturer data).
Specifications
- Item Code: 3770RSS
- Function: Mortice Nightlatch (Primary) — Full Radius End Faceplate
- Backset: 60 mm
- Door Thickness: 32–50 mm
- Handing: Reversible
- Case Material: Zinc
- Bolt/Latch: 15 mm projection; stainless steel latchbolt
- Cylinder: 570 profile; 2-cylinder configuration
- Standards (AS4145.2): Security S7, Durability D8, Corrosion C6
- Use: Commercial/industrial/institutional doors
Warranty
- Mechanical Warranty: 25-year mechanical warranty (conditions apply).
- Finish & other components: As per Lockwood warranty terms.
Download PDF Resources
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Lockwood 3700 Series Mortice Locks — Service Manual |
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Lockwood Selector 3700 Series Mortice Locks — Catalogue |
|
Lockwood 25-Year Mechanical Warranty (Conditions Apply) |
