33% Off
Zenith

Zenith M8 x 25mm Hot Dipped Galvanised Cup Head Bolt and Nut, 4.6 Grade Steel

★★★★★
101 reviews · 484+ sold
$2.26 $3.39 -33% OFF
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Last purchased 15 minutes ago by someone in Geelong
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The Zenith M8 x 25mm hot dipped galvanised cup head bolt and nut is a 4.6 grade steel coach bolt for fastening timber to timber or timber to metal. The square neck seats into the timber and prevents the bolt spinning as you tighten the nut, which is ideal where you have rear access for the nut.

  • Brand: Zenith
  • Bolt size: M8 x 25mm
  • Material: 4.6 grade steel
  • Finish: Hot dipped galvanised
  • Head type: Cup head
  • Colour: Grey
  • Pack: Each (bolt and nut)

Hot dipped galvanising gives this M8 cup head bolt strong corrosion resistance, suiting exposed outdoor jobs such as fences, decking and pergolas. Matching M8 hot dipped galvanised washers and nuts are available to complete each fixing.

More about this product

The Zenith M8 x 25mm Hot Dipped Galvanised Cup Head Bolt and Nut is designed for fastening timber to timber or timber to metal, providing reliable performance in outdoor environments. The hot dipped galvanised finish enhances corrosion protection, making it suitable for use in exposed conditions. Also known as a coach bolt, it is ideal where rear access is available for nut installation, and its square neck design prevents spinning during use for a secure fit.

  • M8 x 25mm size
  • 4.6 grade steel with hot dipped galvanised finish
  • Cup head with square neck
  • Nut included

Questions & Answers

Does this bolt include a nut?

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

How long does hot dipped galvanised steel last?

The thick zinc coating from hot dipping gives long-lasting corrosion protection, with service life depending on exposure and environment.

Is hot dipped galvanised the same as galvanised?

Hot dipping applies a heavier zinc layer than standard galvanising, providing greater corrosion resistance.

Can I use a washer with this bolt?

Yes, a matching M8 hot dipped galvanised washer fits under the nut to spread the load.

Is it suitable for outdoor use?

Yes, the hot dipped galvanised finish makes it suitable for exposed exterior 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 ★★★★☆ 168 reviews
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✓ Fast Delivery ✓ Great Quality ✓ As Described Verified Purchases
C
Chloe D. 📍 Darwin NT
★★★★★
1 month ago
✓ Verified Purchase

No complaints at all

Exactly as described. Quick shipping. Would buy again.

M
Michael C. 📍 Townsville QLD
★★★★★
1 month ago
✓ Verified Purchase

Works perfectly out of the box

Was exactly what I needed for the price I paid. Arrived well packaged and was easy to set up straight away. Already recommended it to a friend who is also thinking of getting one.

H
Hannah P. 📍 Cairns QLD
★★★★★
1 month ago
✓ Verified Purchase

Worth every cent

Did a lot of comparison shopping before buying here and I have no regrets. Best price I found anywhere and delivery was fast — 3 days to Melbourne. Product feels genuinely premium, not cheap at all. Packaging was solid too, box arrived in perfect shape. Will be back for more.

T
Thomas R. 📍 Ballarat VIC
★★★★★
1 months ago
✓ Verified Purchase

Does the job well

Zenith quality is always reliable and this was no exception. Fast delivery too.

J
Jessica L. 📍 Toowoomba QLD
★★★★★
2 months ago
✓ Verified Purchase

Already bought a second one

Placed the order in the evening and got a shipping notification the next morning. Arrived 2 days later in great condition. Product is well made and does everything it should. Really happy with the whole experience.

B
Ben A. 📍 Fremantle WA
★★★★★
2 months ago
✓ Verified Purchase

Quick delivery to regional QLD

The Zenith M8 arrived fast and works perfectly out of the box.

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