ZENITH M6 x 100mm Hot Dip Galvanised Cup Head Bolts & Nuts - 25 Pack, 4.6 Grade Steel
Description & Specs
The ZENITH M6 x 100mm Hot Dip Galvanised Cup Head Bolts & Nuts give you a long, corrosion-resistant fix for deeper timber connections. This 25 pack is made from 4.6 grade steel with a hot dip galvanised finish for solid weather protection.
- Bolt size: M6 x 100mm
- 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 100mm length suits deeper connections in decking, fencing, retaining walls and general timber framing.
More about this product
Zenith M6 x 100mm Hot Dip Galvanised Cup Head Bolts & Nuts 25 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: M6 x 100mm
- Pack: 25
Questions & Answers
What size are these ZENITH cup head bolts?
Each bolt is M6 with a 100mm 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 length connections suit these?
At 100mm they suit 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
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.
Quick delivery to regional QLD
The ZENITH M6 arrived fast and works perfectly out of the box.
Perfect gift — loved it
Bought this as a replacement for one I have had for years and I am glad I upgraded. The new one is noticeably better. Had a tracking number within a few hours of ordering. Packaging was excellent, nothing damaged. Already told a few mates about this site. Great prices and genuinely fast shipping.
Arrived well packed
The ZENITH M6 is a solid buy. I was a bit unsure about the size from the photos but it is perfect in person. Delivery was faster than expected. Very satisfied with this purchase.
Better than expected
No issues at all. Fast delivery and exactly as described.
Great value for money
Spent a while looking for the right ZENITH M6 and this kept coming up as the best value. I can see why — quality is impressive for the price. Delivery took just 2 days to Townsville which is great. Packaging was solid and everything intact. My partner and I both use it daily now. Highly recommended.




