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Master

Master Lock 51mm Magnum Laminated Steel Padlock 38mm Shackle

★★★★★
101 reviews · 164+ sold
$64.13 $96.19 -33% OFF
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Last purchased 5 minutes ago by someone in Brisbane
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The Master Lock 51mm Magnum padlock is built for maximum-security applications, from worksites and industrial gates to store fronts and residential fences. Its 51mm laminated steel body and boron carbide shackle resist cutting and prying, while the pin cylinder mechanism gives reliable, key-operated security.

  • Body width: 51mm
  • Body material: Laminated steel
  • Shackle material: Boron carbide and laminated steel
  • Shackle diameter: 10mm
  • Shackle clearance: 38mm (long shackle)
  • Locking mechanism: Pin cylinder
  • Pack: 1 lock
  • Model: M5DLF

The 38mm long shackle adds clearance for chains, hasps and thicker fittings, making this padlock a strong choice for securing gates, sheds, fences and other high-traffic access areas where tough protection matters.

More about this product

The Master Lock 51mm Magnum with 38mm Long Shackle Padlock is a robust security solution designed for high-security applications in various environments. This padlock features a boron carbide shackle that provides exceptional resistance to cutting and sawing. With a 51mm wide laminated steel body, it is built to stand up to demanding conditions. The 38mm long shackle offers added clearance for multiple uses such as gates, fences and store fronts, and the pin cylinder locking mechanism delivers reliable key-operated security.

Questions & Answers

What is the shackle clearance?

The long shackle offers 38mm of clearance, with a 10mm shackle diameter.

What is the body made from?

The body is laminated steel and the shackle is boron carbide and laminated steel for strong cut resistance.

How wide is the padlock body?

The body is 51mm wide.

Where is this padlock best used?

It suits maximum-security areas such as worksites, manufacturing facilities, store fronts and industrial or residential gates and fences.

How many locks are included?

The pack contains one padlock.

What is the model number?

This is the Master Lock Magnum, model number M5DLF.

Standard Shipping Australia-wide
Ships in 1-2 business days from our Australian warehouses
30-Day Returns
Change your mind? Return within 30 days for a full refund. Item must be unused and in original packaging.

Customer Reviews

4.3 ★★★★☆ 150 reviews
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✓ Fast Delivery ✓ Great Quality ✓ As Described Verified Purchases
L
Liam O. 📍 Perth WA
★★★★★
1 week ago
✓ Verified Purchase

Exactly as described

Always buy Master when I can — consistent quality and you know what you are getting. This one is no different. Fast dispatch and arrived in perfect condition.

O
Olivia R. 📍 Adelaide SA
★★★★★
1 week ago
✓ Verified Purchase

Would buy again for sure

Was a bit skeptical ordering online but really glad I did. The item arrived in a sturdy box — nothing rattled or was damaged. Set it up in about 10 minutes and has been working perfectly since. Compared to what I saw in store I saved a solid amount. Will definitely be back.

N
Noah B. 📍 Gold Coast QLD
★★★★★
1 week ago
✓ Verified Purchase

Good product for the price

Fast delivery to regional WA. Solid product and works exactly as described.

C
Charlotte B. 📍 Canberra ACT
★★★★★
2 weeks ago
✓ Verified Purchase

Exceeded my expectations

Bought this as a birthday present and the person loved it. Arrived the day before I needed it which was perfect timing. Great service from SuperSaver AU — really happy.

J
Jack T. 📍 Newcastle NSW
★★★★★
2 weeks ago
✓ Verified Purchase

Solid quality — very happy

Great little Master Lock — setup was easy and it works perfectly.

M
Mia S. 📍 Sunshine Coast QLD
★★★★★
3 weeks ago
✓ Verified Purchase

Really pleased with this

Honestly one of the easiest online purchases I have made. Ordered in the evening and had a tracking number by morning. Delivered to Canberra in 3 business days. Product is well made and does exactly what we needed. My partner is happy with it too. Highly recommend.

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