Lockwood 3772SS Selector 3772 MkII Universal Primary Mortice Lock - 60 mm Backset - Satin Stainless Steel
The Lockwood 3772SS is the standard build of the Selector 3772 MkII universal primary mortice lock from the ASSA ABLOY-owned Lockwood Selector 3700 Series, supplied with a 60 mm backset, a square-end Satin Stainless Steel faceplate and strike, and sprung hubs with a hub disc.
As the base of the 3772 range, the 3772SS is the most widely specified configuration - a heavy-duty commercial escape lock with auxiliary deadlatching, in-door function configuration and the range's field-selectable escape functions. It accepts standard (non-sprung) lever furniture on both sides and shares the wider 3772 accessory ecosystem (strikes, cams, adaptors, DX conversion and electric-strike faceplates).
The lock body houses a Lockwood 570-series oval cylinder (ordered separately) and can be configured into any of the Selector escape functions via the correct cylinder cam and adaptor. It is fire tested to AS 1905.1 and rated to AS 4145.2 (Durability D8, Security S7) for demanding commercial and institutional use.
Estimated Warehouse Dispatch: 3 business days
Key Features
- Standard 3772 build: sprung hubs with a hub disc and a square-end Satin Stainless Steel faceplate - accepts standard (non-sprung) lever furniture.
- Universal primary case: field-configured into the full range of Selector escape functions via the correct cylinder cam (X7 or V) and adaptor.
- Auxiliary deadlatching latch bolt: 15 mm stainless steel latch with an anti-thrust deadlatching bolt for secure closure.
- In-door function selector: red/green selector under the faceplate for simple on-site function setting on MkII cases.
- Non-handed / field reversible: handed on site without disassembly, so one lock covers left and right-hand doors.
- Robust construction: zinc alloy case body on a stainless steel chassis.
- 570-series cylinder platform: accepts Lockwood 570 oval cylinders and integrates with Lockwood restricted and master key systems (cylinder ordered separately).
- Upgrade-ready: retrofits to Synergy 3570 mortice case sizes and converts to a digital keypad lock via the shared 3772 DX and Cortex conversion kits.
Tested for use on fire door assemblies up to 4 hours in accordance with AS 1905.1:2005 (Part 1). Holdback function configurations of the 3772 range are not fire door rated - specify a non-holdback build for fire doors. For the concept and certification background, see our guide to fire door core types (Buyers Guide Chapter 05), the fire door types and lock testing explainer, and the AS 1905.1 test-report reference.
The Selector 3772 case is engineered for offices, schools, hospitals and government buildings where the door is used continuously. Rated to AS 4145.2 (Durability D8, Security S7) - see Australian Standards (Chapter 11 - AS 4145.2).
What's in the Box
- 1 x Lockwood 3772SS mortice lock body (standard build, 60 mm backset)
- 1 x Satin Stainless Steel square-end faceplate
- 1 x Satin Stainless Steel strike plate
- Fixing screws
- Installation instructions
Suitable Uses
- Commercial and institutional buildings - offices, schools, hospitals, aged care and government facilities.
- Timber doors needing a heavy-duty universal mortice case with standard sprung-hub furniture.
- Fire door assemblies requiring durable, AS 1905.1 tested mortice hardware (non-holdback configurations).
- Sites standardising on the Lockwood 570 oval cylinder platform and restricted / master key systems.
- New installs and retrofit upgrades from Synergy 3570 or earlier 3572 mortice pockets.
Available Finish Options
Satin Stainless Steel
(This Product)
STK 3772SS
Chrome Plate, Polished Brass and Powdercoat faceplate and strike finishes are available by fitting the 3772-FINKIT Alternative Finish Kit. Finish selection does not affect functionality, compliance or performance.
Selector 3772 MkII - Hub & Build Configurations
The Selector 3772 universal primary case is offered in several build configurations. They differ by hub spring, follower type, faceplate and door-kit or fixing - all share the 60 mm backset and the same accessory ecosystem. This 3772SS is the standard build.
| Item Code | Build Configuration |
|---|---|
| 3772SS | Standard build - sprung hubs with hub disc, square-end faceplate. (This Product) |
| 3772NSFSS | Non-Sprung Furniture - no hub return springs (hub disc retained); requires sprung lever furniture. |
| 3772NSF8SS | Non-Sprung Furniture with an 8 mm hub for 8 mm spindle furniture. |
| 3772NOHDSS | No Hub Disc - split (independent) follower, sprung hubs. |
| 3772NSFNOHDSS | Non-Sprung Furniture and No Hub Disc combined - split follower, requires sprung furniture. |
| 3772TSS | Supplied with a locking (turn) adaptor for turn-function configurations. |
| 3772RSS | Full radius-end faceplate - for router-cut (radiused) mortice pockets. |
| 3772SS/50 | Supplied with a 50 mm door kit for thicker doors. |
| 3772AFSS | Aluminium door fixing build - narrow 156 x 25 mm faceplate for aluminium stiles. |
Related Selector / Synergy primary locks: 3782TSS narrow-stile 23 mm backset · 3770TSS MkII Mortice Nightlatch · Synergy 3572SC earlier-platform universal primary. To go electronic on the same 3772 case, step up to the Lockwood Cortex CTX3772 digital lockset.
Selector 3772 Escape Functions (Reference)
The universal 3772 case is configured into the following escape functions on site by selecting the correct cylinder cam and adaptor. This is a function reference - all functions use the same lock body. Holdback (H) configurations are not fire door rated.
| Function Code | Function | Description |
|---|---|---|
| 3772 / 4772 / 5772 | Escape Lock (Primary) | Base mortice escape lock, 60 / 89 / 127 mm backset. Inside handle always free, outside handle rigid. |
| 3772V | Anti-vandal Escape Lock | Outside opened by key when unlocked; inside always free. |
| 3772VT | Anti-vandal Escape Lock + Turn | Cylinder outside, turn inside; inside always free. |
| 3772X | Key Entry Escape Lock | Outside opened by key at all times; inside handle always free. |
| 3772XT | Key Entry Escape Lock + Turn | Outside opened by key; inside opened by turn or handle. |
| 3772-V | Escape Lock with Internal Cylinder | Inside handle always free; key inside locks / unlocks outside handle. |
| 3772-T | Escape Lock with Turn | Inside handle always free; turnknob locks / unlocks outside handle. |
| 3772VV | Anti-vandal Escape Lock with Internal Cylinder | Double cylinder; outside key locks / unlocks handle; inside key also operates bolt. |
| 3772XV | Key Entry Escape Lock with Internal Cylinder | Double cylinder; outside key entry at all times; inside always free. |
| 3772-TA | Anti-lockout Escape Lock + Turn | Turn inside; outside handle operable when unlocked. Prevents accidental lockout. |
| 3772VTA | Anti-lockout, Anti-vandal Escape Lock + Turn | Cylinder outside, turn inside; anti-vandal and anti-lockout functions combined. |
| 3772V-H | Holdback Anti-vandal Escape Lock | Latch can be held in; outside key locks / unlocks; inside always free. Not fire door rated. |
| 3772XVH | Holdback Key Entry Escape Lock with Internal Cylinder | Double cylinder; holdback function; inside always free. Not fire door rated. |
| 3772VTH | Holdback Anti-vandal Escape Lock + Turn | Cylinder outside, turn inside; holdback enabled. Not fire door rated. |
Selector 3772 - Accessories & Spares
| Item / Range | Description |
|---|---|
| 3772-FINKIT (CP / PB / PC) | Alternative finish kit - strike, faceplate & screws. Chrome Plate, Polished Brass or Powdercoat. |
| 3772-RK Rebate Kit | Fire-rated rebate kit for 13 mm rebated door pairs. 32 mm or 46 mm lip; SS, CP, PB. |
| 3772-AFKIT (SS / CP / PC) | Aluminium door fixing kit - converts timber fixing to aluminium. 156 x 25 mm faceplate. |
| 3772-STK Lipped Strikes | Short / extended lipped strikes, 25-60 mm lip lengths; SS, CP, PB (60 mm SS only). |
| 3772-STK32SS | 32 mm lipped strike, Satin Stainless Steel, box of 10. |
| 3772-SECKIT | Security faceplate screw kit - 2 x tamper-resistant TR20 torx-drive screws. |
| 3772-2100SS / 3772AF-2100SS | ES2100 electric strike faceplates (timber and aluminium), Satin Stainless Steel. |
| ES2100 Electric Strike | Monitored 12-30 VDC multi-function electric strike for access control integration. |
| SP3700/X7CAM | X7 cylinder cam - retracts latchbolt and locks / unlocks the locking bar. Box of 100. |
| SP3700/VCAM | V cylinder cam - locks / unlocks the locking bar and retracts the latch after unlocking. Box of 100. |
| 3770M2-ADAPTOR | MkII latching / turn adaptor assembly (box of 10). Not backwards compatible with MkI. |
| 3772-ADAPTOR | Locking turn adaptor assembly, sold as singles. |
| 3772H100SS | Holdback adaptor kit - adds latch holdback (not for fire doors). |
| SP3570-5228 / -5238 / -5258 | Extension spindles for thicker doors (50-75 mm, 100 mm, 200 mm door builds). |
| SP3770-836SS | Securafix retrofit faceplate, Satin Stainless Steel. |
| 3772-DXKITSC | DX digital conversion kit - codepad, mounting plate, spindle, screws and latching adaptor. |
| 3772-DXKOKITSC | DX digital conversion with key override - as above, plus lower cylinder assembly. |
| 3777-KIT | Dual entry conversion kit - lower cylinder mounting plate, spindle cam & screws (two cylinders outside). |
| 3772PEDSS | Panic exit device (PED) faceplate kit for the Selector 3772 mortice lock. |
Full Specifications
- Item Code: STK 3772SS
- Range: Lockwood Selector 3700 Series (MkII), universal primary mortice lock.
- Configuration: Standard build - sprung hubs with hub disc, square-end faceplate.
- Backset: 60 mm (89 mm and 127 mm available on 4772 / 5772 cases).
- Finish: Satin Stainless Steel (faceplate and strike).
- Faceplate: Satin Stainless Steel, square ends, 175 x 25 mm.
- Door thickness: 32-50 mm standard; extension kits available for thicker doors.
- Latch bolt: 15 mm stainless steel latch with auxiliary deadlatching bolt.
- Case: Zinc alloy body on a stainless steel chassis.
- Handing: Non-handed - field reversible without disassembly.
- Cylinder: Suits Lockwood 570-series oval cylinder (ordered separately); X7 or V cam required.
- Keying: Compatible with Lockwood restricted and master key systems.
- Fire rating: Tested to AS 1905.1:2005 (Part 1) up to 4 hours (non-holdback configurations).
- Durability & security: AS 4145.2 - Durability D8, Security S7.
- Access control: Electric strike compatible (ES2100 faceplate kits available).
- Upgrade path: DX digital conversion and Lockwood Cortex CTX3772 digital lockset.
Dimensions
| Part Number | Dimension A (backset) | Dimension B |
|---|---|---|
| 3772 | 60 mm | 88 mm |
| 4772 | 89 mm | 117 mm |
| 5772 | 127 mm | 155 mm |
Frequently Asked Questions
This is the standard 3772SS - sprung hubs with a hub disc and a square-end faceplate. It accepts standard (non-sprung) lever furniture and suits most timber commercial doors. If you need non-sprung furniture, split followers, a radius-end faceplate, a 50 mm door kit or aluminium fixing, see the other builds in the hub configurations table above.
No. The 3772SS is a lock body only. A Lockwood 570-series oval cylinder and the correct cam (X7 or V) are ordered separately to match your keying system and function - this lets the lock integrate with restricted and master key systems. See how key override works for background.
Yes - the 3772 case is tested to AS 1905.1:2005 (Part 1) for use on fire door assemblies up to 4 hours, in non-holdback configurations. Holdback (H) function builds are not fire door rated. Read what makes a lock fire-door compliant.
Yes. The same 3772 case accepts the 3772-DXKITSC DX digital conversion kit (or the key-override version), or you can step up to the standalone Lockwood Cortex CTX3772 digital lockset.
No - the 3772 case is non-handed and can be reversed on site without disassembly, so one lock covers both left and right-hand doors. See door handing and field-reversibility.
Additional Information
The base of the 3772 family. The 3772SS is the standard build most projects start from - sprung hubs with a hub disc so plain lever furniture works on both sides. The other builds change one variable at a time: non-sprung furniture (NSF), split follower (No Hub Disc), radius-end faceplate, 50 mm door kit or aluminium fixing. Match the build to your furniture and mortice pocket using the hub configurations table.
Cam selection matters. The function you get is determined by the cylinder cam (X7 or V) and the adaptor fitted, not by a different lock body. Confirm the intended function before ordering the cam and cylinder. For a plain-English refresher on the mortice lock format and how it differs from other ANSI functions, see the F05 vs F54 mortice locks guide, and confirm your backset with Buyers Guide Chapter 02 - Measuring Your Door (or the measuring your backset how-to).
Deadlatching and secondary-lock context. The 3772 latch is auxiliary deadlatching, which resists loiding (slipping the latch). On apartment and strata fire doors this matters for the one-penetration principle - see secondary locks and the one-penetration principle.
Access control and electric strikes. The 3772 is electric-strike compatible via the ES2100 faceplate kits, so it drops into monitored access-control installations without changing the mortice pocket.
Accessibility (DDA). As a lock body, the 3772SS is not itself DDA compliant - accessibility depends on the lever furniture and door assembly. If your project must meet AS 1428.1, review Buyers Guide Chapter 09 - DDA, NDIS & Accessibility and choose compliant lever furniture accordingly.
Standards, brand and installation. Lockwood is an ASSA ABLOY brand and Australia's most widely specified commercial lock range - see Buyers Guide Chapter 10 - Brand Profiles. For the standards stack (AS 1905.1, AS 4145.2, D and S grades), see Chapter 11 - Australian Standards. Drilling or morticing a fire door carries asbestos and compliance risk in older buildings - read asbestos in apartment fire doors and consider Terry's supply and installation service.
Warranty
- Lockwood 25 Year Mechanical Warranty covers mechanical components and workmanship under normal use and correct installation.
- Electronic and electrical components are covered for 3 years (PADDE & electric mortice locks 5 years, batteries excluded).
- Keys are covered for 12 months.
- Finish warranty varies by finish type and exposure - e.g. Everbrass 25 years; Stainless / Chrome / Anodised 10 years; PVD / VIVID 10 years; Symmetry range 5 years; decorative finishes such as bronze, antique and powdercoat 2 years (natural brass ageing excluded).
- Warranty excludes misuse, improper installation, modification, or failure to maintain as specified.
What's in the Box - Lockwood 3772SS
- 1 x Lockwood 3772SS mortice lock body (standard build, 60 mm backset)
- 1 x Satin Stainless Steel square-end faceplate
- 1 x Satin Stainless Steel strike plate
- Fixing screws
- Installation instructions
Lockwood Selector 3772 - Dimensions
Lockwood Selector 3700 Series - Product Brochure
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.
