Christmas Delivery Notice: All orders will be dispatched from 5th January
NEXT DAY DELIVERY ON ORDERS PLACED BEFORE 2PM


Suitable for indoor and outdoor applications
Keyed Alike
Keyed alike padlocks all have the same key.
Keyed Different
Each padlock has it's own unique key.
Ordering more than 50?
Request a custom quote for bespoke discounts and shipping.

Weather Resistant

Manufacturer Guarantee
The Master Lock 40MEURD combines the natural strength of a closed-shackle discus design with an upgraded octagonal hardened shackle, making it significantly more resistant to bolt cutter attacks than traditional round-shackle discus locks.
The octagonal profile commonly used in crowbars and industrial tools distributes force more effectively across eight faces, increasing the effort required to cut through. This technology is a unique addition to the discus format, which already offers limited shackle exposure.
A built-in key guard prevents dirt and debris from entering the keyway, improving long-term reliability, especially in outdoor or dusty environments.
Please note: This model is not stocked in keyed-alike, but factory keyed-alike options can be arranged for large-volume orders.
Hardened octagonal shackle
Closed-shackle discus body for reduced attack points
Stainless steel body for improved corrosion resistance
Keyway cover to protect against dirt and grit
Strong, affordable security solution
Available keyed different (keyed alike on request for bulk orders)
Securing chains and cables
Garden and perimeter gates
Commercial units, storage areas, and trade tools
Lockboxes, containers and outbuildings
| Brand | Masterlock |
| Weatherproof Rating | Outdoor |
| Insurance Rated? | No |
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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