Zenith M12 x 100mm Hot Dip Galvanised Hex Head Coach Screws - 4.6 Grade Steel, 12 Pack
Description & Specs
Zenith M12 x 100mm hot dip galvanised hex head coach screws deliver dependable, heavy-duty fastening for timber and metal projects, supplied in a 12 pack. The hot dip galvanised coating helps the screws stand up to moisture and outdoor exposure.
- Size: M12 x 100mm
- Material: 4.6 grade steel
- Head type: Hex head
- Thread: Coarse
- Finish: Hot dip galvanised
- Colour: Grey
- Pack quantity: 12
The hex head takes a spanner or socket for high-torque driving and firm clamping pressure, while the coarse thread grips timber securely. A solid choice for retaining walls, pergolas, decking, gates and structural timber framing.
More about this product
Zenith Hot Dip Galvanised Hex Head Coach Screws M12 x 100mm, 12 Pack are designed for heavy-duty construction, providing reliable fastening for timber and metal applications.
- Hexagonal head allows for increased clamping pressure
- Tapered gimlet point creates increased fastening penetration for quick installation
- Coarse thread maximises grip strength in applications
- Hot dip galvanised finish for corrosion resistance
- 4.6 grade steel construction
Questions & Answers
What size are these coach screws?
Each screw measures M12 x 100mm and the pack contains 12.
What are they made from?
They are 4.6 grade steel with a hot dip galvanised finish.
Are they suitable for outdoor use?
Yes. The hot dip galvanised coating provides corrosion resistance suited to exterior and exposed timber applications.
How are they driven?
They have a hex head and are driven with a spanner or socket rather than a screwdriver.
What thread type do they have?
A coarse thread, which gives strong grip in timber.
What can I use them for?
Fastening timber to timber and metal to timber, including retaining walls, pergolas, gates and decking.
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
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.
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 M12 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 M12. Does the job perfectly and the price was unbeatable.




