Lockwood 4571 89mm Backset Mortice Deadlock with Cylinder Turn (No Cylinder) - Satin Chrome
The Lockwood 4571 Mortice Deadlock is a heavy duty locking solution designed for commercial and industrial door applications requiring secure deadlocking functionality.
With an 89mm backset and integrated cylinder turn function, this lock offers flexible operation via key externally and turn internally, while allowing cylinder selection to suit project requirements.
Part of the Lockwood 3570 series platform, it is widely specified for durability and adaptability across high traffic environments.
Usually ships in 10 business days
Non-Returnable Item: This product is a special order and is not returnable.
Key Features
- 89mm backset for deeper door stile applications
- Deadlock function with cylinder and internal turn operation
- 19mm stainless steel bolt for secure engagement
- Compatible with Lockwood cylinders and door furniture
- Heavy duty construction for commercial environments
Suitable Uses
- Commercial buildings and offices
- Schools, hospitals and institutions
- Industrial facilities
- Doors requiring high security deadlocking
Specifications
| Brand | Lockwood |
| Product Type | Mortice deadlock |
| Backset | 89mm |
| Bolt | 19mm stainless steel bolt |
| Operation | Key external, turn internal |
| Cylinder | Not included |
| Finish | Satin Chrome |
Frequently Asked Questions
Does this include a cylinder?
No, this model is supplied without a cylinder to allow selection based on keying requirements.
Is this suitable for commercial use?
Yes, it is designed for heavy duty commercial and industrial applications.
What is a common installation mistake?
Incorrect backset selection can lead to poor alignment with door furniture.
Additional Information
- Commonly specified in Australian commercial building projects.
- Allows flexibility in cylinder selection for master key systems.
- Part of a broader modular mortice lock system.
- Installation should be carried out by qualified locksmiths.
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)
Lockwood Selector 3700 Series Mortice Locks Catalogue
Lockwood Selector 3700 Series Mortice Locks Catalogue
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.
