Lockwood 3772TSS Selector 3772 MkII Universal Primary Mortice Lock - 60 mm Backset with Locking Adaptor - Satin Stainless Steel
The Lockwood 3772TSS is the Selector 3772 MkII Universal Primary mortice lock, supplied with a locking adaptor and finished in Satin Stainless Steel. It is a heavy-duty mortice lock body built for commercial and institutional doors, providing single-action egress (the inside lever always operates for safe exit) with a lockable outside lever configured through the supplied adaptor.
The Selector 3700 platform is a "universal" mortice lock: a single lock case is configured to a wide range of functions - escape, key entry, anti-vandal, holdback and dual-entry - using interchangeable cams and adaptors. The 3772TSS ships in the timber-door fixing format with a 60 mm backset. Extended 89 mm and 127 mm backset versions are catalogued as the 4772 and 5772.
This listing is for the lock body only. A Lockwood 570-series oval cylinder and cam are not included and are ordered separately to suit your keying system. The lock is rated to AS 4145.2 for lockset durability and has been fire tested to AS 1905.1 on compliant fire door assemblies.
Estimated Warehouse Dispatch: 3 Days
Key Features
- Universal primary lock body for the Lockwood Selector 3772 MkII mortice platform.
- Supplied with a locking adaptor to configure key or turn control of the outside lever.
- Single-action egress - the inside lever always retracts the latch for safe exit.
- 60 mm backset (standard). Extended 89 mm and 127 mm backset versions are catalogued as the 4772 and 5772.
- Reversible handing - suits left or right hand doors without disassembly.
- Heavy-duty construction with a zinc alloy case and stainless steel faceplate.
- Accepts Lockwood 570-series oval cylinders and restricted key systems (cylinder and cam ordered separately).
- Fire tested to AS 1905.1 and rated to AS 4145.2 for lockset durability.
- Designed for high-traffic commercial and institutional environments.
- Field-convertible to a digital keypad lock using a Lockwood DX conversion kit, or upgradeable to a Cortex digital lockset.
Fire Tested - AS 1905.1 (up to 4 hours)
The Selector 3772 mortice lock has been successfully fire tested for up to 4 hours on compliant fire door assemblies to AS 1905.1. Holdback function configurations (3772V-H, 3772XVH, 3772VTH) are not fire door rated. Fire performance depends on the complete doorset - confirm that hinges, strikes, seals and the door core are all compatible and certified. For a plain-English explanation of Australian fire door and lockset standards, see Chapter 11 - Australian Standards (AS 1905.1), and our guide to fire door types and certification.
The Selector 3772 mortice lock has been successfully fire tested for up to 4 hours on compliant fire door assemblies to AS 1905.1. Holdback function configurations (3772V-H, 3772XVH, 3772VTH) are not fire door rated. Fire performance depends on the complete doorset - confirm that hinges, strikes, seals and the door core are all compatible and certified. For a plain-English explanation of Australian fire door and lockset standards, see Chapter 11 - Australian Standards (AS 1905.1), and our guide to fire door types and certification.
What's in the Box
- 1 x Lockwood 3772 MkII Universal Primary Lock body (60 mm backset)
- 1 x Satin Stainless Steel faceplate
- 1 x Strike plate
- 1 x Locking adaptor
- Fixing screws
- Installation instructions
Note: A Lockwood 570-series oval cylinder and its cam (X7 or V) are not included and must be ordered separately to suit your keying system.
Suitable Uses
- Commercial and institutional doors requiring configurable primary mortice lock functions.
- High-traffic environments where durability and reliability are essential.
- Fire-rated egress doors requiring a lock fire tested to AS 1905.1 on compliant assemblies.
- As a compliant primary lock on doors where a secondary lock is also fitted - see the one-penetration principle.
- Timber doors (aluminium-door and rebated-door fixing formats are available via conversion kits and dedicated part numbers).
- Upgrade path from earlier Lockwood mortice platforms such as the Synergy 3572 (a Securafix retrofit faceplate may be required).
Available Finish Options
Satin Stainless Steel
(This Product)
STK 3772TSS
The 3772TSS ships with a Satin Stainless Steel faceplate. Alternative finishes - Chrome Plate, Polished Brass and Powdercoat - are achieved with a Lockwood 3772-FINKIT finish kit (see Accessories below). Finish selection does not affect functionality, compliance, or performance.
Lockwood Selector Mortice Range - Item Code Family
Selector 3772 Function Configurations
The 3772 case is configured to the following factory functions using different cams and adaptors. These are reference configuration codes - contact Terry's for made-to-order function builds. Holdback configurations are not fire door rated.
Selector 3772 - Accessories & Spares
Full Specifications
Dimensions
3772 Mortice Lock
Manufacturer dimensional drawing for the Lockwood Selector 3772 mortice lock showing lock body dimensions, backset measurement, faceplate size, and fixing hole positions.
3772 Strike Plate
Manufacturer dimensional drawing for the Lockwood 3772 strike plate showing overall plate dimensions, latch and bolt aperture positions, and fixing hole centres.
Frequently Asked Questions
What backset does the 3772TSS use, and are other backsets available?
The 3772TSS has a 60 mm backset. The same lock in an 89 mm or 127 mm backset is catalogued as the 4772 and 5772 respectively. If you are unsure how to measure the backset on your door, see our guide to measuring your lock backset and Chapter 02 - Measuring Your Door.
The 3772TSS has a 60 mm backset. The same lock in an 89 mm or 127 mm backset is catalogued as the 4772 and 5772 respectively. If you are unsure how to measure the backset on your door, see our guide to measuring your lock backset and Chapter 02 - Measuring Your Door.
What does the "T" locking adaptor do?
The "T" in 3772TSS denotes that the lock is supplied with a locking adaptor. The adaptor configures how the outside lever is locked and unlocked - by key or turn - while the inside lever always remains free for egress. Replacement or additional adaptors are available as the 3772-ADAPTOR and the 3770M2-ADAPTOR (MkII, not backwards compatible with MkI).
The "T" in 3772TSS denotes that the lock is supplied with a locking adaptor. The adaptor configures how the outside lever is locked and unlocked - by key or turn - while the inside lever always remains free for egress. Replacement or additional adaptors are available as the 3772-ADAPTOR and the 3770M2-ADAPTOR (MkII, not backwards compatible with MkI).
Is the 3772TSS suitable for fire doors?
Yes. The Selector 3772 has been fire tested to AS 1905.1 for up to 4 hours on compliant fire door assemblies. Note that holdback configurations (3772V-H, 3772XVH, 3772VTH) are not fire door rated. Fire performance depends on the whole doorset, so confirm all hardware is compatible. For context, see fire door types and certification and, before drilling any older door, our note on asbestos risk in apartment fire doors.
Yes. The Selector 3772 has been fire tested to AS 1905.1 for up to 4 hours on compliant fire door assemblies. Note that holdback configurations (3772V-H, 3772XVH, 3772VTH) are not fire door rated. Fire performance depends on the whole doorset, so confirm all hardware is compatible. For context, see fire door types and certification and, before drilling any older door, our note on asbestos risk in apartment fire doors.
Does this lock include a cylinder?
No. The 3772TSS is a lock body only. It accepts a Lockwood 570-series oval cylinder, which is ordered separately along with the appropriate cam - an X7 cam for latching or a V cam. Confirm your keying and restricted-system requirements with Terry's before ordering the cylinder.
No. The 3772TSS is a lock body only. It accepts a Lockwood 570-series oval cylinder, which is ordered separately along with the appropriate cam - an X7 cam for latching or a V cam. Confirm your keying and restricted-system requirements with Terry's before ordering the cylinder.
Can the 3772 be converted to a digital keypad lock?
Yes. A DX Digital Conversion Kit (3772-DXKITSC) adds a mechanical-digital codepad to the existing mortice lock, and the DX with Key Override kit (3772-DXKOKITSC) adds a lower cylinder for key override. For a fully credentialled digital lockset built on the same 3772 body, step up to the Lockwood Cortex CTX3772 digital lockset.
Yes. A DX Digital Conversion Kit (3772-DXKITSC) adds a mechanical-digital codepad to the existing mortice lock, and the DX with Key Override kit (3772-DXKOKITSC) adds a lower cylinder for key override. For a fully credentialled digital lockset built on the same 3772 body, step up to the Lockwood Cortex CTX3772 digital lockset.
Additional Information
Fire Door Installations
The Selector 3772 is fire tested to AS 1905.1, but a fire-rated lock is only one part of a compliant doorset - confirm hinges, strikes, seals and the door core are all rated and compatible, and remember that holdback configurations are excluded from the fire rating. For a reference list of test certificates see Fire-Rated Certification - Test Reports, and for compliance rules on apartment fire doors see what locks are actually compliant. Fire door and commercial work is a candidate for Terry's professional install - see Site Survey & Installation Services.
The Selector 3772 is fire tested to AS 1905.1, but a fire-rated lock is only one part of a compliant doorset - confirm hinges, strikes, seals and the door core are all rated and compatible, and remember that holdback configurations are excluded from the fire rating. For a reference list of test certificates see Fire-Rated Certification - Test Reports, and for compliance rules on apartment fire doors see what locks are actually compliant. Fire door and commercial work is a candidate for Terry's professional install - see Site Survey & Installation Services.
Universal Platform - Cams and Adaptors
The 3772 is a "universal" lock case: its function is set by the cam and adaptor fitted at installation. The X7 cam retracts the latchbolt and operates the locking bar; the V cam operates the locking bar and retracts the latch after unlocking. MkII adaptors such as the 3770M2-ADAPTOR are not backwards compatible with MkI cases.
The 3772 is a "universal" lock case: its function is set by the cam and adaptor fitted at installation. The X7 cam retracts the latchbolt and operates the locking bar; the V cam operates the locking bar and retracts the latch after unlocking. MkII adaptors such as the 3770M2-ADAPTOR are not backwards compatible with MkI cases.
Retrofits and Faceplate Options
When upgrading from an older mortice cut-out - for example an earlier Synergy 3572 - a Securafix retrofit faceplate can cover a wider mortice. For aluminium doors use the 3772-AFKIT, and for radiused door edges specify the 3772RSS full radius end version.
When upgrading from an older mortice cut-out - for example an earlier Synergy 3572 - a Securafix retrofit faceplate can cover a wider mortice. For aluminium doors use the 3772-AFKIT, and for radiused door edges specify the 3772RSS full radius end version.
Primary Lock and the One-Penetration Principle
The 3772 is a primary mortice lock. On fire-rated apartment and strata doors, only one penetration of the door leaf is typically permitted, so the primary lock and any secondary lock must be planned together. See our explainer on the one-penetration principle and primary locks.
The 3772 is a primary mortice lock. On fire-rated apartment and strata doors, only one penetration of the door leaf is typically permitted, so the primary lock and any secondary lock must be planned together. See our explainer on the one-penetration principle and primary locks.
Electric Strike and Access Control
The 3772 pairs with the Lockwood ES2100 monitored electric strike using the matching ES2100 faceplate kit - 3772-2100SS for timber doors or 3772AF-2100SS for aluminium - to bring the opening into an access-control or monitored system.
The 3772 pairs with the Lockwood ES2100 monitored electric strike using the matching ES2100 faceplate kit - 3772-2100SS for timber doors or 3772AF-2100SS for aluminium - to bring the opening into an access-control or monitored system.
About the Brand
Lockwood is an Allegion-owned brand and one of Australia's most widely specified lock manufacturers. The Selector 3700 series is its commercial universal mortice platform. For a brand overview, see Chapter 10 - Brand Profiles (Lockwood).
Lockwood is an Allegion-owned brand and one of Australia's most widely specified lock manufacturers. The Selector 3700 series is its commercial universal mortice platform. For a brand overview, see Chapter 10 - Brand Profiles (Lockwood).
Lockwood Warranty (Australia)
Lockwood branded products purchased new in Australia from authorised resellers are covered against defects in materials and workmanship for:
Lockwood branded products purchased new in Australia from authorised resellers are covered against defects in materials and workmanship for:
- Mechanical components: 25 years
- Electrical and electronic components: 2 years (excluding batteries)
Cosmetic finishes, batteries, normal wear and tear, misuse, unauthorised modification, corrosion and labour or freight costs are excluded.
This warranty operates in addition to rights available under the Australian Consumer Law.
What's in the Box - Lockwood 3772TSS
- 1 x Lockwood 3772 MkII Universal Primary Lock body (60 mm backset)
- 1 x Satin Stainless Steel faceplate
- 1 x Strike plate
- 1 x Locking adaptor
- Fixing screws
- Installation instructions
Note: A Lockwood 570-series oval cylinder and its cam (X7 or V) are not included and must be ordered separately to suit your keying system.
Lockwood 3772 - Dimensions
3772 Mortice Lock - lock body dimensions, 60 mm backset, faceplate size and fixing hole positions.
3772 Strike Plate - overall plate dimensions, latch and bolt aperture positions and fixing hole centres.
Lockwood Selector 3700 Series Mortice Locks - Catalogue
Lockwood Selector 3700 Series Mortice Locks Catalogue - Page 12
Lockwood Selector 3700 Series Mortice Locks Catalogue - Page 13
Lockwood Selector 3700 Series Mortice Locks Catalogue - Page 14
Lockwood Selector 3700 Series Mortice Locks Catalogue - Page 15
Lockwood Selector 3700 Series Mortice Locks Catalogue - Page 16
Lockwood Selector 3700 Series Mortice Locks Catalogue - Page 17
Lockwood Warranty Overview
Lockwood branded products are covered by manufacturer warranties issued by ASSA ABLOY Australia Pty Ltd. Warranty periods vary depending on product type, mechanical components, electrical elements, and finish category.
This overview summarises the structure of Lockwood warranty coverage. Full terms, exclusions and claim procedures are set out in the official Lockwood Warranty document.
Warranty Periods Summary
Finish Coverage Guide
- Everbrass finishes: up to 25 years against corrosion, tarnishing and discolouration.
- Stainless steel, polished stainless steel, chrome plating and anodised finishes: typically up to 10 years.
- Decorative finishes including Antique Copper, Architectural Bronze, Oil Rubbed Bronze, Aged Brass, Polished Brass, Satin Brass and related variants: typically up to 2 years against corrosion.
- Unlacquered brass finishes will naturally age and change appearance over time. This is not considered a defect.
- Tea staining of stainless steel is not covered where cleaning and maintenance have not been followed.
What the Warranty Covers
- Defects in material and workmanship during the applicable warranty period.
- Assessment by ASSA ABLOY to determine repair, replacement with the same or closest equivalent product, or refund of purchase price.
Common Exclusions
- Normal wear and tear.
- Misuse, abuse, accidental damage or use outside published specifications.
- Improper maintenance or failure to follow care instructions.
- Unauthorised modification, repair or use of non-genuine parts.
- Exposure to corrosive environments including coastal air, salt spray, chemicals or pollution.
- Removal, refitment or associated labour charges.
- Products not originally sold in Australia through authorised channels.
Warranty Claim Process
- Retain proof of original purchase.
- Return the product through the original place of purchase where applicable.
- If claiming directly, obtain a case number before returning goods.
- Products must be securely packed and clearly identified.
- Warranty assessment determines repair, replacement or refund.
Australian Consumer Law
Lockwood warranties operate in addition to rights available under the Australian Consumer Law. Goods come with guarantees that cannot be excluded. Customers may be entitled to a replacement or refund for a major failure and compensation for reasonably foreseeable loss or damage.
Where a product fails to meet acceptable quality standards and the failure does not amount to a major failure, the customer is entitled to repair or replacement.
