
Lockwood MC35 Securiturn Release Key - No Finish
The Lockwood MC35 Release Key is used with the Lockwood Securiturn removable thumb-turn system for double cylinder locks. It allows the Securiturn thumb-turn to be removed from the cylinder when required.
The Securiturn system provides everyday thumb-turn convenience while allowing the thumb-turn to be removed when the premises are unoccupied. The release key is inserted into the cylinder behind the key to release the Securiturn from the cylinder.
Typically ships in 17 Days.
Key Features
- Release key for the Lockwood MC35 Securiturn removable thumb-turn system
- Allows removal of the Securiturn thumb-turn from the cylinder
- Designed for use with double cylinder lock applications using Securiturn
- Easy to operate
- Simple but effective security accessory
- Supports safety when utilising double cylinder locks
- Precision design and quality construction
- Tested to Australian Standard
Suitable Uses
- Lockwood Securiturn removable thumb-turn systems
- Double cylinder lock installations using Securiturn
- Residential and commercial doors where removable thumb-turn operation is required
- Sites where the thumb-turn needs to be removed when the building is secured
Full Specifications
Frequently Asked Questions
What is the MC35 Release Key used for?
It is used to remove the Lockwood Securiturn removable thumb-turn from the cylinder when removal is required.
Does this replace the Securiturn thumb-turn?
No. This item is the release key used with the Securiturn system. The Securiturn thumb-turn and compatible cylinder are separate parts unless supplied as part of another kit.
Is this suitable for all double cylinder locks?
It is intended for Lockwood Securiturn applications. Compatibility should be checked against the existing cylinder and Securiturn setup before ordering.
Additional Information
- The MC35 Release Key is a small but important service accessory for premises using Lockwood Securiturn removable thumb-turns.
- It is commonly kept by installers, facility managers or authorised personnel who need to remove the thumb-turn when the building is secured.
- Confirm the site is using the Lockwood Securiturn system before ordering, as this release key is not a general purpose lock key.
- The supplied information refers to New Zealand Building Act Means of Escape clause 7.2.2 in relation to the Securiturn thumb-turn system, not the release key alone.
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)
MC35 Securiturn Instructions

MC35 Securiturn Instructions
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Lockwood Warranty
Lockwood branded products are covered by manufacturer warranties issued by ASSA ABLOY Australia Pty Ltd. Warranty periods vary by product type, with separate cover for mechanical components, electrical and electronic parts, keys, and finishes.
The summary below sets out the standard warranty structure. All warranty claims are handled by Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries. Full terms and exclusions are set out in the official Lockwood warranty document linked at the base of this page.
Warranty 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.
- PVD and VIVID finishes: typically up to 10 years.
- Symmetry range finishes: typically up to 5 years.
- Decorative finishes (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 naturally age and change appearance over time. This is not considered a defect.
- Tea staining of stainless steel is not covered where the required cleaning and maintenance have not been followed.
How to Make a Claim
- Contact Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries with your proof of original purchase.
- Keep the product securely packed and clearly identified, ready for assessment.
- Where a claim is escalated to the manufacturer, ASSA ABLOY may issue a case number before goods are returned.
- ASSA ABLOY assesses the claim and determines repair, replacement with the same or closest equivalent product, or refund of the purchase price.
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.
These manufacturer warranties apply in addition to your rights under the Australian Consumer Law. Our goods come with guarantees that cannot be excluded under the ACL. You are entitled to a replacement or refund for a major failure and to compensation for any other reasonably foreseeable loss or damage. Where a failure does not amount to a major failure, you are entitled to have the goods repaired or replaced.