LOCKWOOD

Lockwood Selector® 3770 Nightlatch Mortice Locks

A comprehensive range of cylinder mortice locks suitable for heavy duty use in industrial and commercial buildings, institutions, clubs, schools, hospitals, hotels and similar buildings.

These locks have various latching functions operated by a key outside and by a turnknob or key inside. The mortice nightlatch locks automatically when the door is closed.

The 3770 Nightlatch Mortice Lock also feature through-fixing of rose furniture turnknobs and escutcheons, allowing for more robust fixing of door furniture.

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Lockwood Selector® 3770 Nightlatch Mortice Locks

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  • Furniture

    Compatible with most Lockwood cylinder escutcheons, turnknobs and plate furniture.
    Lockwood Door Handles – More Information

    Case and Faceplates

    • High purity zinc alloy material cases with stainless steel chassis plates. Stainless steel faceplates provided as standard
    • Brass faceplates available for alternative finishes

    Backset

    • 60mm standard backset
    • Extended backsets 89 and 127mm are available

    Latch Bolts

    • Latch bolts are made with stainless steel, 15mm in size
    • Deadlatching is achieved by an auxiliary stainless steel latch bolt
    • Reversible for both left and right hand doors, opening in or opening out whilst lock is in door
    • Electric Strike compatibility
    • Separate auxiliary bolt moves into lock case simultaneously with latch bolt
    • Radius bolt provides greater deadlatch throw and smoother closing action

    Cylinder Retaining Pin

    Hard-drawn spring steel wire, corrosion protected.

    Door Thickness

    • 32 to 50mm
    • Components to facilitate use on thicker doors are available on application

    Door Clearance

    To ensure correct functioning of the deadlatching mechanism and security for all locks, the clearance between the door and the frame should be 3mm. The deadlatching will operate up to 7mm door clearance, however door clearances over 5mm are not recommended.

    Aluminium Doors

    Specify Selector® 3772-AFKIT for aluminium door fixing kit to convert a timber fix lock to aluminium fixing. The aluminium door fixing kit comes with a 156mm by 25mm radius corner faceplate common to other aluminium door locks.

    Security

    All Selector® 3770 Series Cylinder Mortice Locks conform with Level S7 (Physical Security) Australian Lock Standard (AS-4145.2-2008). Conforms to Level S8 (Physical Security) when fitted with door furniture and anti-drill cylinder.

    Durability

    All Selector® 3770 Series Cylinder Mortice Locks conform with Level D8 (Durability) Australian Lock Standard (AS4145.2-2008).

    Fire Rating

    All Selector® 3770 Series Cylinder Mortice Locks have been successfully tested up to 4 hours (depending on type of doorsets) on fire door assemblies in accordance with Australian Standard AS 1905.1-2015, Part 1: Fire Resistant Doorsets.

    Anti-Corrosion

    All Selector® 3770 Series Cylinder Mortice Locks conform with Level C6 (168 hours) Australian Standard (AS4145.2-2008).

    Cylinder

    Requires standard Lockwood oval shaped brass cylinders and brass barrels. Lockwood cylinders include bump resistant five pin tumbler mechanism.
    Functions require the use of different cams and adaptors.

    Keying

    Restricted Special Keying

    Lockwood locks can be keyed to a number of controlled and/or specially keyed systems. These range from legally protected keys to protect against unauthorised duplication and can also include specially designed keying systems such as master key systems. This allows for different levels of mechanical access control.

    Lockwood Keying Platforms – More Information

    Standard Finishes

    Stainless Steel SS

    Extended Cylinders

    Modular Cylinder Extensions are available for thicker doors.

    Rebate

    Rebate kits to suit 13mm standard rebate are available.

    Electric Strikes

    Lockwood offers a wide range of electric strikes which are compatible with the Selector® 3770 Series Mortice Lock.
    Lockwood Electric Strikes – More Information

    Dimensions

     

    Part Number 3770 4770 5770
    Dimension A 60 89 127
    Dimension B 88 117 155
  • Catalogue
    Lockwood Selector 3700 Series Mortice Locks Catalogue(PDF, 9 MB)
    Technical Downloads
    3770 Series Timber Mounting Template - 4770-5121(PDF, 414 KB)
    3770 Series Rebated Timber Door Mounting Instructions(PDF, 935 KB)
    3770 Series Aluminium Doors Mounting Instructions(PDF, 1 MB)
    3770-5121_4(PDF, 11 MB)
    Lockwood 3700 MkI Service Manual (PDF, 34 MB)
    Lockwood 3700 MkII Service Manual(PDF, 18 MB)
  • DescriptionPart number
    LOCKWOOD SELECTOR 3770 NIGHTLATCH MORTICE LOCKS
    Primary Locks - 3770 Nightlatch Primary Lock 60mm Backset3770SS
    Primary Locks - 4770 Nightlatch Primary Lock 89mm Backset4770SS
    Primary Locks - 5770 Nightlatch Primary Lock 127mm Backset5770SS
    Primary Locks with Latching Turn Adaptor - 3770 Nightlatch Primary Lock 60mm Backset Including Latching Adaptor3770TSS
    Primary Locks with Latching Turn Adaptor - 4770 Nightlatch Primary Lock 89mm Backset Including Latching Adaptor4770TSS
    Primary Locks with Latching Turn Adaptor - 5770 Nightlatch Primary Lock 127mm Backset Including Latching Adaptor5770TSS
    Primary Locks with Radius End Faceplate - 3770 Nightlatch Primary Lock Rad Faceplate 60mm Backset3770RSS
    Primary Locks with Radius End Faceplate - 4770 Nightlatch Primary Lock Rad Faceplate 89mm Backset4770RSS
    Primary Locks with Radius End Faceplate - 5770 Nightlatch Primary Lock Rad Faceplate 127mm Backset5770RSS

Australian Made

Designed and built in Australia according to high quality standards.

Similar products

  • Lockwood Selector® 3782 Short Backset Universal Mortice Locks

  • Lockwood Selector® 3772 DX Digital Mortice Locks

  • Lockwood Selector® 3787 Short Backset Dual Entry Mortice Locks

Disclaimer: Selector is a registered trademark of ASSA ABLOY Australia Pty Ltd in New Zealand
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