ZENITH M12 x 240mm Hot Dip Galvanised Cup Head Bolts & Nuts - 12 Pack, 4.6 Grade Steel
Description & Specs
The ZENITH M12 x 240mm Hot Dip Galvanised Cup Head Bolts & Nuts deliver a long, corrosion-resistant fix for heavy outdoor timber work. This 12 pack is made from 4.6 grade steel with a hot dip galvanised finish for solid weather protection.
- Bolt size: M12 x 240mm
- Head type: Cup head with square neck
- Material: 4.6 grade steel
- Finish: Hot dip galvanised
- Pack quantity: 12 bolts and nuts
- Colour: Grey
The rounded cup head sits flush against the surface while the square neck beds into timber to stop the bolt turning as the nut is tightened. The extra 240mm length suits thicker assemblies in decking, pergolas, retaining walls and structural framing.
More about this product
Zenith Hot Dip Galvanised Cup Head Bolts & Nuts M12 x 240mm 12 Pack offers a reliable fastening solution with a low profile cup head, ideal for various construction applications.
- 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: M12 x 240mm
- Pack: 12
Questions & Answers
What size are these ZENITH cup head bolts?
Each bolt is M12 with a 240mm length, supplied with matching nuts in a 12 pack.
What is hot dip galvanising?
It is a thick zinc coating applied by dipping the steel in molten zinc, giving strong corrosion resistance for outdoor use.
What does the square neck do?
The square neck under the cup head 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 in the pack.
What length timber will these suit?
At 240mm they are made for thicker assemblies and deeper timber connections in framing and outdoor structures.
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
Happy with SuperSaver AU
Have bought Zenith before and always been happy. Great price on SuperSaver AU and delivery was fast. Arrived perfectly packaged. Works flawlessly from day one.
Fast delivery and perfect condition
Fast delivery and exactly what I ordered. Very happy with this.
Outstanding value
Bought this on a bit of an impulse after seeing it on the site and really glad I did. Quality is much better than the price suggests — feels premium and well made. Ordered Monday and it arrived Wednesday in Sydney. Nothing loose or damaged. A few people have asked where I got it.
Good buy — fast shipping
Really good value — compared it to similar products at twice the price and there is very little difference in quality. Fast shipping and arrived in perfect condition.
Just as described
Works perfectly. Fast delivery. Would recommend to anyone.
Satisfied customer
Had been looking at the ZENITH M12 for a couple of months. Zenith build quality is obvious as soon as you open the box — feels solid and well finished. Easy to set up and works exactly as described. Delivery to Perth in only 3 days which is impressive. Will be buying more from SuperSaver AU for sure.




