When can I return my item?

Returns are accepted within 30 days of the original purchase date.

How do I get the item back to you for a refund?

It is your responsibility to get the item/s back to us for any consideration of a return or refund. All items returned are required to be accompanied with the original sales order number or a copy of your paperwork to facilitate the process.

Do you charge a restocking fee?

No restocking fees are charged on items held on our shelf

How will I get my refund?

Refunds are offered only on the items purchase – if items or packaging is damaged or components are missing, part refunds may be offered (this is at the discretion of management). No refunds are offered on the original postage charged, only on stock returned undamaged. Refunds are processed back via the original purchase method.

Can I return a special order in item?

Special order items DO NOT attract an automatic return or refund – as they have been special ordered in. We are governed by the supplier of the special-order stock to see if they will offer a return or refund. Many will not offer refunds; many will charge restocking fees. For consideration of a return of a special-order item, you would be best to approach the Mr Windows team before shipping the item back to us.

The leading reseller and manufacturer of obsolete sliding window parts, shower parts and sliding door parts in Australia with over 4000 different products to choose from! We offer quality products at competitive prices; with friendlier customer service than many other distributors out there. Trade Customers & Business Customers can expect great volume pricing so you can get big orders going, and get that competitive edge. For all things Windows, Sliding Door Parts & Showers, we're here with the solution.

Do You Repair Doors, Windows or Showers?

Sadly we do not perform maintenance or repairs ourselves anymore. We have decided to focus on parts and hardware while giving any enquiries for repairs or maintenance to trusted, local trades people.

Are Sliding Glass Door Rollers Universal?

The answer is generally no, whilst there are some rollers that can be used in various brands. Most door rollers are designed for the specific manufacture and series of door, so they are not universal or generally interchangeable. If you are not sure what brand of door you have, check out our resources section, in their you will find the sliding door decal guide this shows the most common decals or motifs that are used by the major brands in the center of their glass door panels. Once you identify the brand you can then search on our site. If you are still unsure, then send us a PDF or JPeg image of your door roller carriage, no need to remove it leave it in the door panel and send this photo to us and the team will do the rest to assist you in your search.

What Is The Hardware On A Door Called?

Furniture generally refers to the handle and the components therein in its entirety. Lever Handles are exactly as they sound. Typically not found on sliding doors, they use a lever action to open, close and lock. Mortice Lock is found inside of the extrusion. The lock body is hidden away inside the door itself.

What Is Dummy Door Hardware?

Dummy Hardware refers to the Sliding Door Handle or Furniture that has no locking mechanism. Often used on the internal of a door.

What Are Door Knob Screws Called?

These screws are often referred to as Grub Screws or Set Screws.

How experienced is your team to help me?

Over 50 Years Of Experience. We are capable of identifying and troubleshooting Window Parts, Sliding Door Parts & Shower Parts dating back as far as the 1960's. With a culture and ethos fostered and focused around restoration and repair before entire replacement, you can be certain we will find a solution for you that is cheaper than a new window, sliding door or shower.

Sliding Door Lock - Boston - Polesium

MR. WINDOWS Promise

We guarantee next day shipping on all stocked items.
To help you find the right part for the job, with our team's assistance in ID and sourcing.
To supply only top-quality, tried-and-tested products, supporting Australian businesses with locally manufactured, assembled, and designed items.

Sliding Door Lock - Boston - Polesium

Sliding door lock by Doric "Boston" - features Advant chassis

NOTE barrel IF YOU REQUIRE a different key number this needs to be purchased separately - see SKU's below to add to your order

Adaptable to suit left or right handed door configurations
Anti-lift pins prevent the door from being lifted to unlock the door

FINISH: Black

MATERIAL: Polesium (engineered polymer)

DIMENSIONS

209mm long x 90.50mm wide x 50mm high
Fixings: 82mm between hole centers
Internal standoff 44mm (from base to highest point of grip handle)
External handle stand-off 37mm

HANLDE KIT INCLUSIONS:

Internal handle
External handle
Chassis
Keeper/strike
Fixing screws
Barrel and 2 keys (See different cylinder SKU options below)
- SKU 4338 #96002
- SKU 4339 #96003
- SKU 4340 #96004
- SKU 4341 #96005
- SKU 4342 #96006
- SKU 4343 #96008
- SKU 4344 #96009
- SKU 4345 #96010

OPTIONS:

SKU 4401 DS1002A Lock Set (External Cylinder ONLY)
- DS892 External Handle
- DS155 C4 Pin Cylinder - key #27001
- DS5010 Standard Keeper
SKU 4402 DS1005A Lock Set (Internal Cylinder ONLY)
- DS893 External Handle
- DS155 C4 Pin Cylinder - key #27001
- DS5010 Standard Keeper
SKU 4403 DS1000A Latch Set (NO Key Cylinders)
- DS892 External Handle
- DS155 C4 Pin Cylinder - key #27001
- DS5010 Standard Keeper
SKU 4404 DS1008A Dummy Set (suits OXXO - center opening doors)
- Couple with SKU 4403
- DS893 External Handle
- Cylinder Plug
SKU 4405 DS1001A Latch Set (NO Cylinders)
- DS893 External Handle
- Cylinder Plug
- DS5010 Standard Keeper
SKU 4408 Handle set - excludes barrel and strike. Holes Int/Ext in handles. Included internal handle, external handle (metal), chassis and fixing screws
SKU 4475 DS1000A+ DS1008A
- Complete lock set to suit OXXO center opening door
- Strike pre-fitted to dummy handle for easy installation (IMAGE of the Trend Infinity that this unit will work as a replacement for) - includes barrel
- SKU 4403 + SKU 4404
SKU 4130 Cylinder (key barrel) plug
- Sold singly WORKS with any current series Doric door lock
**SPECIAL ORDER WHITE DS1000A Lock Set (Internal & External Cylinders)
- DS892 External Handle
- DS5010 Keeper
- DS155 C4 Pin Cylinder - key #96007
- THIS IS NOT HELD IN STOCK
**SPECIAL ORDER BLACK DS1000A Lock Set (Internal & External Cylinders)
- DS892 External Handle
- DS155 C4 Pin Cylinder - key #96001
- DS5010 Keeper
- THIS IS NOT HELD IN STOCK
**SPECIAL ORDER PRIMROSE DS1000A Lock Set (Internal & External Cylinders)
- DS840 Flat External Handle
- DS5010 Keeper
- DS155 C4 Pin Cylinder - key #96001
- THIS IS NOT HELD IN STOCK
**SPECIAL ORDER PRIMROSE DS1000A Lock Set (Internal & External Cylinders)
- DS892 External Handle
- DS5010 Keeper
- DS155 C4 Pin Cylinder - key #96001
- THIS IS NOT HELD IN STOCK

NOTES:

Other colours are available as special order items (white, silver and custom colours on request)
INSTALLATION instructions in gallery

Delivery & Returns

Returns Guarantee

We offers a fit guarantee and accepts returns on unused, unopened items for a refund. If the part is incorrect, send us a photo and we’ll help identify the right one.

Next Day Shipping

If the item is in stock, we guarantee dispatch on the next business day. Fast, reliable processing ensures your order moves without delay.

Global Shipping

Most orders ship within Australia, but we also send parts worldwide. International deliveries are handled via DHL for reliable global service.

Trusted Solutions for Window, Door & Shower Hardware

Behind every number is a real conversation and a team that genuinely cares.

2025—every chapter worth reading

42,945 emails received

43,196 fulfilled orders

14 team members

799,039 of online store visits

192,210 items sold

1,000+ counter visits

452 phone calls handled

1,132 Google reviews

4.9-star rating on Google

Please Note
Once you submit your email request to our team, you will receive an automated response from our system. The system automatically allocates you a ticket number and sends a response back to you with this number.
If you need more assistance from us before we respond, simply quote this number when you call us.
Once you get this automated response, you can rest assured that the team have received your email and will respond back to you as soon as they can.
Please do not send multiple tickets without referencing the original ticket - did you know we get around 100 + emails a day for parts ID and keeping the one email communication ensure we do not miss your needs.
If you have multiple needs, simply send separate queries for each product category - once you have the relevant product SKU's you can then place one order.
By submitting an image to us for parts ID, you are providing us with access to this information for use on our site or social media platforms. We guarantee we will only use images for the website to assist other customers with parts identification. No names or identifying images of you will be used without permission on our website or social media awareness platforms. Should you not grant use of your images please advise us on your submission for our assistance.