Zenith M10 x 300mm Hot Dip Galvanised Cup Head Bolts & Nuts - 4.6 Grade, 12 Pack
Description & Specs
The Zenith M10 x 300mm Hot Dip Galvanised Cup Head Bolts and Nuts are a 12 pack in 4.6 grade steel, ideal where a longer bolt is needed. The low-profile cup head sits flush, and the square neck under the head limits spinning as the nut is tightened.
- Bolt size: M10 x 300mm
- Material: 4.6 grade steel
- Finish: Hot dip galvanised
- Head type: Cup head
- Colour: Grey
- Pack quantity: 12 bolts and nuts
These long M10 bolts suit general construction such as thick timber framing, retaining walls and gates, fastening timber to timber, metal to timber or metal to metal. The hot dip galvanised finish provides strong corrosion resistance outdoors, and matching Zenith M10 hot dip galvanised washers can be added under the nut.
More about this product
Zenith M10 x 300mm Hot Dip Galvanised Cup Head Bolts and Nuts 12 Pack provide a reliable fastening solution for general construction applications. They feature a low-profile cup head for a flush finish and a square neck that limits spinning during installation. The coarse thread provides strong grip, and hexagonal nuts are included.
- Low-profile cup head for a flush finish
- Square neck limits bolt spinning during application
- Coarse thread for strong grip
- Hexagonal nuts included
- 4.6 grade steel, hot dip galvanised, M10 x 300mm, 12 pack
Questions & Answers
What size are these bolts?
M10 x 300mm cup head bolts, supplied with nuts as a 12 pack.
What grade and finish are they?
4.6 grade steel with a hot dip galvanised finish.
Are nuts included?
Yes. Hexagonal nuts are included with the bolts.
What jobs do they suit?
General construction such as thicker timber framing, retaining walls and gates.
Can I add washers?
Yes. Matching Zenith M10 hot dip galvanised washers can be fitted under the nut.
Shipping & Returns
Ships in 1-2 business days from our Australian warehouses
Change your mind? Return within 30 days for a full refund. Item must be unused and in original packaging.
Customer Reviews
Absolutely love it!
Had the Zenith M10 on my wishlist for a few weeks and finally pulled the trigger. Arrived in 2 days which was a nice surprise. Build quality is solid and exactly what the photos showed. My partner uses it every day now and has already asked me to grab another one as a gift.
Best buy of the year
Ordered Thursday and had it by Saturday. Packaging was really good — nothing moved around. Works exactly as expected and the price was well below what I saw in stores.
Fast delivery — impressed
Love my Zenith M10. Does the job perfectly and the price was unbeatable.
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.
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.
Good product for the price
Fast delivery to regional WA. Solid product and works exactly as described.

