ZENITH M6 x 25mm Hot Dip Galvanised Cup Head Bolts & Nuts - 25 Pack, 4.6 Grade Steel
Description & Specs
The ZENITH M6 x 25mm Hot Dip Galvanised Cup Head Bolts & Nuts give you a strong, corrosion-resistant fix for outdoor timber work. This 25 pack is made from 4.6 grade steel with a hot dip galvanised finish for reliable weather protection.
- Bolt size: M6 x 25mm
- Head type: Cup head with square neck
- Material: 4.6 grade steel
- Finish: Hot dip galvanised
- Pack quantity: 25 bolts and nuts
- Colour: Grey
The rounded cup head finishes flush against the surface while the square neck beds into timber to stop the bolt spinning as the nut is tightened. A bulk pack ideal for decking, fencing, furniture and general timber framing.
More about this product
Zenith M6 x 25mm Hot Dip Galvanised Cup Head Bolts & Nuts 25 Pack offers a reliable fastening solution with a low profile cup head and high corrosion resistance.
- Low profile cup head for a flush finish
- Square neck feature limits bolt spinning during application
- Coarse thread for maximum grip strength
- Hexagonal nuts included
- Material: 4.6 grade steel
- Finish: Hot dip galvanised
- Bolt size: M6 x 25mm
- Pack: 25
Questions & Answers
What size are these ZENITH cup head bolts?
Each bolt is M6 with a 25mm length, supplied with matching nuts in a 25 pack.
Is hot dipped galvanised the same as galvanised?
Both add a zinc coating, but hot dip galvanising gives a thicker layer for stronger corrosion resistance outdoors.
What does the square neck do?
It beds into timber so the bolt does not spin while you tighten the nut.
Are nuts included?
Yes, a matching hex nut is supplied for every bolt.
What are these used for?
They suit decking, fencing, furniture and general timber framing.
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
Exceptional — 5 stars
Really happy with this. Price was the best I found online and delivery was faster than expected. Product is well made and does exactly what it should. Zero complaints — will buy from SuperSaver AU again.
Absolutely love it!
Had the ZENITH M6 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 M6. 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.




