Lockwood 5782 Narrow Stile Mortice Lock - 30mm Backset, Suits Cortex Escutcheons, Satin Stainless Steel
The Lockwood 5782CTXNZSS is a narrow stile primary escape mortice lock from the Selector 3780 Series, configured to suit Lockwood Cortex digital escutcheons. It is the mechanical lock body for use with the CTX5782 Cortex lockset, supplied separately for installations where the lock body needs to be sourced independently - including NZ specification sites, or projects where the installer supplies the lock body and Cortex escutcheon separately.
The 5782 uses a 30mm backset and a 15mm stainless steel deadlatching latch bolt, making it suited to narrow stile aluminium framed doors and other narrow door types where a standard 60mm backset cannot be accommodated. All lock settings are adjustable from under the faceplate, and the lock accepts standard Lockwood 570 oval cylinders. For guidance on confirming the right backset before ordering, see the buyers guide chapter on measuring stile width on aluminium and narrow doors.
Usually ships in 12 business days
This product has an estimated dispatch time of 12 business days. Please allow adequate lead time when ordering for project or installation deadlines.
Key Features
- Designed to suit Lockwood Cortex digital escutcheons - specifically the CTX5782 escutcheon unit.
- 30mm backset - suited to narrow stile aluminium framed doors and other narrow door types.
- Primary escape mortice lock from the Selector 3780 Series.
- 15mm stainless steel latch bolt - deadlatching.
- Escape function with red/green indicator setting.
- All lock settings adjustable from under the faceplate - no need to remove the lock body.
- Anti-lockout function built in - closing the door or retracting the latch bolt prevents lockout.
- Holdback capability - the latch bolt can be held within the lock body. Holdback must not be activated on fire doors.
- Accepts standard Lockwood 570 oval cylinders.
- High-purity zinc alloy case with stainless steel chassis plates.
- Faceplate: 260mm x 25mm x 2mm.
What's in the Box
- Lockwood 5782 narrow stile mortice lock body
- Faceplate (260mm x 25mm x 2mm)
- Mounting hardware
Cylinder not included. Cortex CTX5782 escutcheon unit not included and must be ordered separately. Confirm escutcheon and lock body compatibility before ordering.
Suitable Uses
- Narrow stile aluminium framed commercial doors requiring a 30mm backset mortice lock - see the buyers guide on matching hardware to your door type.
- Installations where the 5782 lock body is sourced separately from the CTX5782 Cortex escutcheon.
- NZ specification projects requiring this specific 5782 configuration.
- Replacement lock body for an existing CTX5782 Cortex installation.
- Projects requiring the escape function with red/green indicator.
Available Finish Options
Satin Stainless Steel
(This Product)
5782CTXNZSS
Finish selection does not affect functionality, compliance, or performance.
Where This Lock Sits in the Range
The 5782 is the narrow stile (30mm backset) mechanical body. The CTX5782 is the digital Cortex version of the same narrow format. Where the door has a standard-width stile, the 60mm backset 3772 is the equivalent commercial mortice lock.
Full Specifications
Frequently Asked Questions
No. This product is the mechanical lock body only. The full digital version - the Lockwood Cortex CTX5782 lockset - includes the escutcheon and the lock body together. Order this product only if you need the lock body independently.
No. A cylinder must be ordered separately. This lock accepts standard Lockwood 570 oval cylinders.
No. The holdback function must not be activated on fire-rated doors. Fire doors are required to self-close and latch - holdback prevents this and would compromise the fire rating of the doorset.
The 30mm backset suits narrow stile aluminium framed doors and other narrow door types where a standard 60mm backset will not fit. If you are unsure, check the buyers guide on standard backset sizes and how to measure yours before ordering.
This is a long lead time item with an estimated dispatch time of 12 business days. Allow adequate lead time when ordering for project deadlines.
Additional Information
- NZ Specification:
This variant (5782CTXNZSS) is configured to NZ specification and is designed to suit Lockwood Cortex digital escutcheons. Confirm this is the correct variant for your project before ordering, given the 12 business day lead time. - Deadlatching Latch Bolt:
The 15mm stainless steel latch bolt is deadlatching - when the door closes, the latch bolt is automatically deadlocked and cannot be retracted by external pressure without operating the handle or key. This provides security against latch slipping without requiring a separate deadbolt. - All Settings Under the Faceplate:
All function settings on the 5782 are adjusted from under the faceplate. This simplifies in-door configuration and reconfiguration without requiring the lock body to be removed from the door. - About the Brand:
Lockwood is an ASSA ABLOY brand and one of the most widely specified lock brands in Australian commercial hardware. For background on the range, see the buyers guide brand profile for Lockwood.
Lockwood branded products purchased new in Australia from authorised resellers are covered against defects in materials and workmanship as follows:
- Mechanical components: 25 years — covers mechanical components and workmanship under normal use and correct installation.
- Electronic & electrical components: 3 years (PADDE & electric mortice locks 5 years; batteries excluded).
- Keys: 12 months.
- Finish: varies by finish type and exposure — 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).
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.
Official Warranty Document
