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Zenith

Zenith M6 x 40mm Hot Dipped Galvanised Cup Head Bolt and Nut, 4.6 Grade Steel

★★★★★
101 reviews · 444+ sold
$2.19 $3.29 -33% OFF
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Last purchased 4 minutes ago by someone in Canberra
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The Zenith M6 x 40mm hot dipped galvanised cup head bolt and nut is a 4.6 grade steel coach bolt for fastening timber to timber and timber to metal. The square neck under the dome head locks into the timber so the bolt will not spin as the nut is tightened.

  • Brand: Zenith
  • Bolt size: M6 x 40mm
  • Material: 4.6 grade steel
  • Finish: Hot dipped galvanised
  • Head type: Cup head
  • Colour: Grey
  • Pack: Each (bolt and nut)

With its hot dipped galvanised finish for corrosion resistance, this cup head bolt is well suited to outdoor builds such as fences, decking, pergolas and garden structures. A matching M6 hot dipped galvanised washer and nut can be added to finish the fixing.

More about this product

The Zenith M6 x 40mm Hot Dipped Galvanised Cup Head Bolt and Nut is a durable fastening solution engineered for reliable fastening of timber to timber and timber to metal. The hot dipped galvanised finish provides corrosion protection for outdoor applications. This bolt includes a square neck feature that prevents it from spinning during installation, ensuring a secure fit.

  • M6 x 40mm size
  • 4.6 grade steel with hot dipped galvanised finish
  • Cup head with square neck
  • Nut included

Questions & Answers

Is a nut included with this bolt?

Yes, each bolt is supplied with a matching hex nut.

Is hot dipped galvanised the same as galvanised?

Hot dipped galvanising gives a thicker zinc coating than standard galvanising, offering greater corrosion protection for outdoor use.

What is a cup head bolt used for?

Also called a coach bolt, it fastens timber to timber or timber to metal, with the square neck preventing the bolt from turning.

Can I add a washer?

Yes, a matching M6 hot dipped galvanised washer fits under the nut to spread the load.

Is it suitable for exterior projects?

Yes, the hot dipped galvanised finish resists corrosion in outdoor conditions.

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 ★★★★☆ 43 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 Zenith 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 Zenith M6 — 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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