Lockwood 3772NSF8SS - Selector® 3772 MkII Universal Primary Escape Lock - HD Hub Spring, 8mm Hub, 60mm Backset, Satin Stainless Steel
The Lockwood 3772NSF8SS is a Selector® 3772 MkII universal primary escape lock built for demanding commercial and institutional doors. It is configured with a heavy-duty (HD) hub spring and an 8mm hub for solid spindle operation, and set for the standard 60mm backset. The lock body is finished in Satin Stainless Steel.
Lockwood is an ASSA ABLOY brand and one of the most widely specified door hardware ranges in Australia. The Selector® 3772 platform is engineered for high-traffic environments such as schools, hospitals, hotels, aged care, clubs, and commercial or industrial buildings, where a robust, serviceable mortice lock with an escape (always-free inside handle) function is required.
As a universal primary lock, the 3772 supports multiple latching functions through interchangeable cams and adaptors, and accepts Lockwood 570-type oval cylinders, including restricted and master key systems. The lock is non-handed and field reversible, so a single unit suits both left-hand and right-hand doors.
Estimated Warehouse Dispatch: 12 Business Days
Fire Rated - AS1905.1:2005
The standard Selector® 3772 escape lock is tested for use on fire door assemblies rated up to 4 hours to AS1905.1:2005 (components for the protection of openings in fire-resistant walls). Fire certification applies to the standard escape functions - holdback variants (for example 3772V-H, 3772XVH, 3772VTH) are not fire door rated. Always confirm the complete doorset is certified for the specific door type. For a plain-English explanation of fire door hardware certification, see Chapter 11 - AS1905.1 Fire Door Hardware and our guide to Australian fire door types and certification.
The standard Selector® 3772 escape lock is tested for use on fire door assemblies rated up to 4 hours to AS1905.1:2005 (components for the protection of openings in fire-resistant walls). Fire certification applies to the standard escape functions - holdback variants (for example 3772V-H, 3772XVH, 3772VTH) are not fire door rated. Always confirm the complete doorset is certified for the specific door type. For a plain-English explanation of fire door hardware certification, see Chapter 11 - AS1905.1 Fire Door Hardware and our guide to Australian fire door types and certification.
Key Features
- Universal primary escape lock for the Selector® 3772 MkII series - inside handle is always free for emergency egress.
- Heavy-duty (HD) hub spring with an 8mm hub for robust spindle support and extended service life under high-traffic use.
- 60mm backset (standard). Related models cover 89mm and 127mm backsets for wider stile doors.
- 15mm stainless steel deadlatching latchbolt for secure self-latching operation.
- Anti-lockout and holdback functions available across the platform via adaptors and cams.
- Easy red/green function setting under the faceplate for straightforward on-site configuration.
- Reduced cam and adaptor range simplifies stockholding and function selection.
- Accepts Lockwood 570-type oval cylinders, including restricted and master key systems.
- Non-handed and field reversible - suits left-hand or right-hand doors from a single unit.
- Conversion path to keyless entry: the same body accepts the Lockwood DX mechanical digital keypad kit, so a mechanical door can be upgraded to PIN access later without replacing the lock case.
What's in the Box
- 1 x Lockwood 3772 MkII universal primary lock (HD hub spring, 8mm hub, 60mm backset)
- 1 x Satin Stainless Steel faceplate
- 1 x strike plate
- Fixing screws
- Installation instructions
Note: the oval cylinder is not included. Order a Lockwood 570-type oval cylinder (standard, restricted, or master keyed) separately to suit your keying system.
Suitable Uses
- Commercial and institutional escape doors requiring a heavy-duty mortice lock with an always-free inside handle.
- High-traffic environments such as hospitals, schools, hotels, aged care, offices, and clubs.
- Fire-rated doorsets needing hardware certified up to 4 hours (standard escape functions only). See where fire doors are required in Queensland.
- Doors within restricted or master key systems using Lockwood 570-type oval cylinders.
- Retrofit and like-for-like replacement of earlier Selector® 3770 and Synergy 3572 series mortice locks. For mortice door prep and format background, see choosing the right mortice lock format.
Available Finish Options
Satin Stainless Steel
(This Product)
STK 3772NSF8SS
Alternative faceplate finishes (Chrome Plate, Polished Brass, Powdercoat) are available via the 3772 finish conversion kits listed in Accessories & Spares. Finish selection does not affect functionality, compliance, or performance.
Selector® 3772 MkII Mortice Locks - Item Code Family
Selector® 3772 Series - Accessories & Spares
Full Specifications
Dimensions
Manufacturer dimensional drawing for the Lockwood Selector® 3772 mortice lock body - lock body dimensions, 60mm backset, faceplate size, and fixing hole positions.
Lockwood 3772 strike plate - overall plate dimensions, latch and bolt aperture positions, and fixing hole centres.
Frequently Asked Questions
Is the cylinder included?
No. The 3772NSF8SS is supplied as a lock body with faceplate, strike, fixing screws and instructions. It accepts Lockwood 570-type oval cylinders, so order the cylinder separately to suit your keying system - standard, restricted, or master keyed.
No. The 3772NSF8SS is supplied as a lock body with faceplate, strike, fixing screws and instructions. It accepts Lockwood 570-type oval cylinders, so order the cylinder separately to suit your keying system - standard, restricted, or master keyed.
What does "8mm hub with HD hub spring" mean, and how is it different from the standard 3772?
The hub is the part of the lock that the spindle passes through to operate the latch. This build uses an 8mm hub paired with a heavy-duty return spring, which gives firmer handle return and longer service life on busy doors. The 3772NSFSS is the same HD-spring build with a standard hub, and the 3772SS is the standard build.
The hub is the part of the lock that the spindle passes through to operate the latch. This build uses an 8mm hub paired with a heavy-duty return spring, which gives firmer handle return and longer service life on busy doors. The 3772NSFSS is the same HD-spring build with a standard hub, and the 3772SS is the standard build.
Can this lock be used on a fire door?
Yes. The standard Selector® 3772 escape functions are tested for fire door assemblies up to 4 hours to AS1905.1:2005. Holdback variants are not fire door rated. Fire certification applies to the complete doorset, so confirm all hardware and the door itself are certified for the specific door type. See why you cannot simply swap a lock on a fire door.
Yes. The standard Selector® 3772 escape functions are tested for fire door assemblies up to 4 hours to AS1905.1:2005. Holdback variants are not fire door rated. Fire certification applies to the complete doorset, so confirm all hardware and the door itself are certified for the specific door type. See why you cannot simply swap a lock on a fire door.
Do I need to specify handing?
No. The 3772 is non-handed and field reversible, so one lock suits both left-hand and right-hand doors. If you are unsure how handing is described in Australia, see our guide to door handing in Australia.
No. The 3772 is non-handed and field reversible, so one lock suits both left-hand and right-hand doors. If you are unsure how handing is described in Australia, see our guide to door handing in Australia.
Can I add keyless entry to this lock later?
Yes. The 3772 body accepts the Lockwood DX mechanical digital keypad conversion kit (3772-DXKITSC, or 3772-DXKOKITSC with key override), so a mechanical door can be upgraded to PIN access without replacing the lock case. A factory-built digital version is also available as the 3572DX.
Yes. The 3772 body accepts the Lockwood DX mechanical digital keypad conversion kit (3772-DXKITSC, or 3772-DXKOKITSC with key override), so a mechanical door can be upgraded to PIN access without replacing the lock case. A factory-built digital version is also available as the 3572DX.
Additional Information
On-Site Function Setting
The 3772 uses an easy red/green function setting under the faceplate, so the installer can confirm and change the latching behaviour on site without dismantling the lock. Combined with the reduced cam and adaptor range, this keeps stockholding simple across a mixed door schedule - one primary lock body covers many functions.
The 3772 uses an easy red/green function setting under the faceplate, so the installer can confirm and change the latching behaviour on site without dismantling the lock. Combined with the reduced cam and adaptor range, this keeps stockholding simple across a mixed door schedule - one primary lock body covers many functions.
Escape Locks on Fire Doors
An escape lock keeps the inside handle free at all times, which is why it suits fire and egress doors where people must always be able to get out. The standard 3772 is certified to AS1905.1:2005 up to 4 hours, but holdback functions are not fire door rated because they can defeat self-latching. When specifying for a fire door, confirm the doorset, closer, hinges and strike are all certified together. Background reading: Chapter 05 - fire door core types, fire door compliance requirements, and the compliant fire-rated deadlatch principle.
An escape lock keeps the inside handle free at all times, which is why it suits fire and egress doors where people must always be able to get out. The standard 3772 is certified to AS1905.1:2005 up to 4 hours, but holdback functions are not fire door rated because they can defeat self-latching. When specifying for a fire door, confirm the doorset, closer, hinges and strike are all certified together. Background reading: Chapter 05 - fire door core types, fire door compliance requirements, and the compliant fire-rated deadlatch principle.
AS4145.2 Grading
AS4145.2 is the Australian standard for mechanical locksets, grading durability (D), security (S), corrosion (C) and key security (K). The Selector® 3772 is a durability-graded commercial lock rated D8 (the highest durability tier, tested to 500,000 cycles) with security grade S7. For a plain-English breakdown of what each grade means, see Chapter 11 - AS4145.2 durability grading.
AS4145.2 is the Australian standard for mechanical locksets, grading durability (D), security (S), corrosion (C) and key security (K). The Selector® 3772 is a durability-graded commercial lock rated D8 (the highest durability tier, tested to 500,000 cycles) with security grade S7. For a plain-English breakdown of what each grade means, see Chapter 11 - AS4145.2 durability grading.
Cylinders & Master Keying
The lock takes Lockwood 570-type oval cylinders and integrates into restricted and master key systems. The cylinder is ordered separately so it can be cut and combinated to your site's keying schedule. For dual-entry (two outside cylinders) applications, use the 3777 dual-entry conversion kits listed above. Confirm cylinder and keying requirements with your locksmith before ordering.
The lock takes Lockwood 570-type oval cylinders and integrates into restricted and master key systems. The cylinder is ordered separately so it can be cut and combinated to your site's keying schedule. For dual-entry (two outside cylinders) applications, use the 3777 dual-entry conversion kits listed above. Confirm cylinder and keying requirements with your locksmith before ordering.
Commercial Installation & Site Survey
Fire-rated and commercial mortice installations reward accurate door preparation - backset, hub position, faceplate rebate and strike alignment all have to be right. For larger schedules or fire door work, Terry's offers a supply, site survey and installation service on the Gold Coast. See professional supply & installation.
Fire-rated and commercial mortice installations reward accurate door preparation - backset, hub position, faceplate rebate and strike alignment all have to be right. For larger schedules or fire door work, Terry's offers a supply, site survey and installation service on the Gold Coast. See professional supply & installation.
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.
Returns & Warranty | Download Lockwood Mechanical Warranty (PDF) | Official Lockwood Warranty Information
This warranty operates in addition to rights available under the Australian Consumer Law.
What's in the Box - Lockwood 3772NSF8SS
- 1 x Lockwood 3772 MkII universal primary lock (HD hub spring, 8mm hub, 60mm backset)
- 1 x Satin Stainless Steel faceplate
- 1 x strike plate
- Fixing screws
- Installation instructions
Note: the oval cylinder is not included. Order a Lockwood 570-type oval cylinder (standard, restricted, or master keyed) separately to suit your keying system.
Lockwood Selector® 3772 - Dimensions
Mortice lock body - lock body dimensions, 60mm backset, faceplate size, and fixing hole positions.
Strike plate - overall plate dimensions, latch and bolt aperture positions, and fixing hole centres.
Lockwood Selector® 3700 Series - Product Brochure
Selector 3700 Series Mortice Locks - catalogue page 1
Selector 3700 Series Mortice Locks - catalogue page 2
Selector 3700 Series Mortice Locks - catalogue page 3
Selector 3700 Series Mortice Locks - catalogue page 4
Selector 3700 Series Mortice Locks - catalogue page 5
Selector 3700 Series Mortice Locks - catalogue page 6
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.
