Iver Osaka Door Lever on Square Rose — Passage Set

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IverSKU: 21186
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$155.22 $199

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The Iver Osaka Door Lever on Square Rose — Passage Set — combines the Osaka lever's chunky tapered cylindrical barrel, softly rounded tip and clean edging with a 52mm square rose for a bold, contemporary statement on any internal door. Understated and chic, it complements daring spaces and minimalist design through its simple shape and quiet confidence. This Passage Set includes a tube latch — the door latches shut when closed and both inside and outside levers are always free. No locking. Crafted from solid brass, fire rated to 2 hours to meet Australian Standard AS1530.4:2014. Available in 6 finishes.

Material
Solid brass
Backplate
Square Rose 52mm
Fire Rating
2 Hours AS1530.4
Finishes
6 Options
Warranty
10-Year Mechanical Warranty Covers defects in materials and workmanship across all finishes
Lifetime Finish Warranty Available on Polished Chrome, Brushed Chrome, Polished Nickel and Brushed Gold PVD
Living finishes Brushed Brass naturally ages and patinas over time — generally excluded from finish defect warranties
What's in the box
✓ 1 x Pair of Osaka levers on Square Rose ✓ 2 x Square rose backplates (52mm)
✓ 1 x Tube latch (60mm backset) ✓ Face fix wood screws
✓ Tie bolts included
Bundle guide — what else do you need?
Follow these steps to complete your installation.
Step 1 — What is your door made of?
Timber door
Most common for internal doors. Installs directly using the included wood screws.
⌫ Typical thickness: 35mm – 45mm
Aluminium door
Common for modern or commercial-style homes. May require aluminium-specific fixings.
⌫ Typical thickness: 44mm – 55mm
Step 2 — Is it a double door?
Standard doors (under 2100mm)
150mm bolt top + 150mm bolt bottom
Taller doors (2100mm and above)
300mm bolt top + 150mm bolt bottom
Step 3 — Add hinges
3 hinges are recommended per door for both internal and entrance applications. Choose a matching finish from the Iver hinge range.
Hinges
Not sure which hinge to choose? Use this as your guide.
Ball bearing
Entrance and heavier doors
Reduces friction, prevents squeaking and wear.
Fixed pin
Internal and lighter entrance doors
A reliable all-rounder for most internal applications.
Loose pin
Internal use only — ideal for bathrooms
Door can be lifted off its hinges in an emergency, even when locked.
ⓘ As a general rule: 3 hinges for internal doors, 3 hinges for entrance or heavier doors. Contact us for a full hinge positioning guide.
Specifications
Function Passage — tube latch included. No locking.
Material Solid brass
Door type Timber & aluminium
Door thickness 35mm – 55mm
Backplate Square rose — 52mm × 52mm
Projection 55mm
Fire rating 2 hours — AS1530.4:2014
Warranty 10-Year Mechanical Warranty
Sold as Pair
Available finishes Brushed Brass | Brushed Chrome | Matt Black | Polished Chrome | Satin Nickel | Signature Brass
Frequently Asked Questions
What function does this lever set provide?
This is a Passage Set — the door latches shut when closed but cannot be locked. Both the inside and outside levers are always free to operate. Suited to bedrooms, living rooms, hallways and studies — any internal door that simply opens and closes without requiring locking. If you need locking from inside, choose the Privacy Set. For keyed external security, choose an Entrance Set.
What is included in this set?
The Passage Set includes a pair of Osaka levers on square rose backplates (52mm), a tube latch (60mm backset), face fix wood screws and tie bolts. Hinges are not included — see the bundle guide to select the right hinge for your door.
Can I convert a Passage Set to Privacy later?
The Passage Set is supplied with a tube latch only. To add privacy locking you would need to replace the latch with a privacy bolt and latch combination — or select the Privacy (Separate) Set from the outset, which includes both the tube latch and privacy bolt. We recommend selecting the correct function before purchase.
What makes the Osaka lever distinctive?
The Osaka lever features a chunky tapered cylindrical barrel with a softly rounded tip and clean edging where it meets the square rose. Understated and chic, it complements daring spaces and minimalist design through its simple shape and quiet confidence — a handle that feels as good in the hand as it looks on the door.
What material is it made from?
The Iver Osaka lever and square rose are crafted from solid brass. This gives the hardware a heavy, premium feel and ensures it won't rust or corrode over time. The solid brass core is then finished in your chosen surface treatment (e.g. Matt Black, Brushed Brass, Polished Chrome).
Is this fire rated?
Yes. The Iver Osaka Door Lever on Square Rose has been successfully fire rated to 2 hours in accordance with Australian Standard AS1530.4:2014. Contact our sales team for further details or documentation.
What warranty is included?
Iver door hardware is backed by a 10-Year Mechanical Warranty in Australia, covering defects in materials and workmanship. A Lifetime Finish Warranty applies to Polished Chrome and Brushed Chrome. Brushed Brass is a living finish that naturally ages and develops a patina over time and is generally excluded from finish defect warranties. All products are covered by Australian Consumer Law.
What finishes are available?
The Iver Osaka Door Lever on Square Rose is available in 6 finishes: Brushed Brass, Brushed Chrome, Matt Black, Polished Chrome, Satin Nickel and Signature Brass. Brushed Chrome and Polished Chrome are covered by the Lifetime Finish Warranty. Brushed Brass is a living finish that will naturally age and patina over time. If you're unsure which finish suits your interior, contact us — we're happy to help.
How many hinges do I need?
As a general rule, 3 hinges are recommended per door for both internal and entrance applications. Ball bearing hinges are best for entrance and heavier doors. Fixed pin hinges suit standard internal doors. Loose pin hinges are ideal for bathrooms as the door can be lifted off in an emergency. Contact us for a full hinge recommendation.
Is this sold as a pair?
Yes. All Iver Osaka Door Lever on Square Rose sets are sold as a pair — including levers for both the inside and outside of a single door, along with all hardware for your chosen function.
Do I need flush bolts for a double door?
Yes. Flush bolts secure the inactive leaf of a double door and prevent rattling. For doors under 2100mm use 150mm bolt top + 150mm bolt bottom. For taller doors use 300mm bolt top + 150mm bolt bottom. Available in non-lockable and key-lockable versions. A magnetic catch (e.g. PLS24PRO) can be used in place of the bottom bolt if preferred.

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