Lockwood 3577 Mortice Dual Cylinder Entry Deadlatch (No Cylinder)
The Lockwood 3577 Mortice Dual Cylinder Entry Deadlatch is designed for high security commercial applications requiring controlled key access from both sides of the door.
This configuration enables independent key operation internally and externally, making it suitable for restricted access environments where key control and emergency access protocols are required.
Supplied without cylinders, this model allows flexible integration into master key or restricted keying systems.
Usually ships in 10 business days
Non-Returnable Item: This product is a special order and is not returnable.
Key Features
- Dual cylinder entry deadlatch design
- Key operation from both sides of the door
- Supplied without cylinders for flexible keying systems
- Designed for restricted and controlled access applications
- Heavy duty mortice lock construction
- Compatible with Lockwood door furniture ranges
- Tested to Australian Standards
Suitable Uses
- Commercial buildings and offices
- Hospitals and healthcare facilities
- Schools and educational environments
- Hotels and accommodation buildings
- Restricted access areas requiring dual key control
Specifications
Available Finish Options
-
Chrome Plate
-
Satin Chrome
Frequently Asked Questions
Are cylinders included?
No, cylinders must be supplied separately.
Why use dual cylinder?
Dual cylinder allows controlled access from both sides using keys.
Is this suitable for emergency access?
Yes, it is commonly used where controlled emergency access is required.
Additional Information
- Commonly specified in Australian commercial and institutional buildings.
- Used where key control and restricted access is critical.
- Incorrect cylinder selection is a common installation issue.
- Compatible with Lockwood master key systems.
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 Electric Mortice Locks Catalogue
Lockwood Electric 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.
