ZENITH M10 x 120mm Hot Dip Galvanised Cup Head Bolts & Nuts - 25 Pack, 4.6 Grade Steel
Description & Specs
The ZENITH M10 x 120mm Hot Dip Galvanised Cup Head Bolts & Nuts give you a long, heavy-duty, corrosion-resistant fix for structural timber work. This 25 pack is made from 4.6 grade steel with a hot dip galvanised finish for reliable weather protection.
- Bolt size: M10 x 120mm
- 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 cup head finishes flush while the square neck grips into timber to stop the bolt spinning during tightening. The heavier M10 diameter at 120mm suits deep connections in decking, retaining walls, pergolas and structural timber framing.
More about this product
Zenith M10 x 120mm Hot Dip Galvanised Cup Head Bolts & Nuts provide a reliable fastening solution for various construction applications, featuring a low profile cup head.
- 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: M10 x 120mm
- Pack: 25
Questions & Answers
What size are these ZENITH cup head bolts?
Each bolt is M10 with a 120mm length, supplied with matching nuts in a 25 pack.
What is hot dip galvanising?
It is a thick zinc coating applied in molten zinc that gives strong corrosion resistance for outdoor use.
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 length connections suit these?
At 120mm they suit deep timber connections in decking, retaining walls and structural 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
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.




