Lockwood 3540 Series Teardrop Turn for Metal Door and Accessory Packet - Satin Chrome
The Lockwood SP3540-T2SC is a teardrop turn for metal door applications, supplied with an accessory packet, for use with Lockwood 3540 Series short backset mortice locks. The teardrop turn allows interior operation of the deadbolt without a key and is specifically configured for the thinner frame profiles found in narrow stile metal doors.
The 3540 Series is designed for heavy duty use in industrial and commercial buildings, institutions, clubs, schools, hospitals, hotels, retail and similar buildings where a short backset mortice deadlock is required in a narrow stile door construction.
This product is a security lock component and is not returnable. Please confirm compatibility with your existing 3540 Series installation before ordering.
Key Features
- Teardrop-shaped interior turn for Lockwood 3540 Series short backset mortice locks.
- Designed for metal door applications with narrow stile frame construction.
- Allows interior operation of the deadbolt without a key.
- Supplied with accessory packet for installation.
- Satin Chrome finish.
- Suitable for heavy duty commercial and industrial door applications.
What's in the Box
- 1 x SP3540-T2SC teardrop turn assembly
- Accessory packet (installation hardware)
Suitable Uses
- Replacement or upgrade of the interior turn on Lockwood 3540 Series mortice locks in metal door installations.
- Narrow stile hinged metal and aluminium door applications.
- Commercial buildings, institutions, schools, hospitals, hotels and retail premises fitted with 3540 Series deadlocks.
- Applications requiring interior deadbolt operation without a key on the inside face.
Full Specifications
Frequently Asked Questions
- What does a teardrop turn do on a mortice deadlock?
A teardrop turn (also called a thumbturn or snib) is fitted to the interior face of the door. It allows the deadbolt to be operated from the inside without a key - the user turns the teardrop-shaped knob to throw or retract the bolt. This is common in commercial applications where quick egress from inside is needed without requiring a key. - Why is there a specific version for metal doors?
Metal and aluminium narrow stile doors have thinner, differently proportioned frame sections compared to timber doors. The SP3540-T2SC is configured with the appropriate mounting geometry and hardware for this door type. Using a timber door version on a metal door, or vice versa, may result in incorrect fit or function. - Is this suitable as a replacement part?
Yes. The SP3540-T2SC is a Lockwood 3540 Series accessory and can be used as a replacement turn on an existing 3540 Series mortice lock installation in a metal door. Confirm the lock series and door type before ordering. - Can I use this with a 3541 or 3542 Series lock?
The SP3540-T2SC is a 3540 Series accessory. Confirm compatibility with your specific lock model with Lockwood or your locksmith before ordering, as the 3540 Series encompasses a range of function configurations. - Is this product returnable?
No. As a security lock component, the SP3540-T2SC is non-returnable. Confirm suitability for your installation before ordering.
Additional Information
- The 3540 Series by Lockwood is designed for short backset applications in narrow stile hinged doors and is commonly specified in commercial, institutional and high-traffic environments.
- The teardrop turn profile is a recognisable Lockwood design that provides a positive grip for operation while maintaining a low-profile appearance on the interior face of the door.
- Always confirm the exact 3540 Series model and door construction type (timber vs metal) with the installer or lock supplier before specifying replacement or additional accessories from this series.
- Installation of lock components should be performed by a qualified locksmith to ensure correct function and security performance.
Lockwood branded products purchased new in Australia from authorised resellers are covered against defects in materials and workmanship for:
- Mechanical components: 25 years
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
