Copper Clout Nails – 1kg Bags

Name: 1kg Copper Clout Nails for Slate Roofing | Insane Bulk Discounts
Brand: Discount Trade Supplies
SKU: Copper
Availability: InStock

SKU: Copper Categories: Clout Nails, Roofing Fixings & Products, Roofing Products Tag: content-updated Brand: Discount Trade Supplies

From £18.94£22.73 EX VATINC VAT

Copper clout nails sold in 1kg bags, available in a wide range of lengths and diameters. Ideal for fixing natural slates and roofing felt. Copper won’t rust, so your fixings stay solid long after the job is done.

Size	Price	QTY
25mm x 2.65mm	£18.94£22.73
25mm x 3.35mm	£18.94£22.73
30mm x 2.65mm	£18.94£22.73
30mm x 3.00mm	£18.94£22.73
30mm x 3.35mm	£18.94£22.73
32mm x 2.65mm	£18.94£22.73
32mm x 3.00mm	£18.94£22.73
35mm x 3.00mm	£18.94£22.73
32mm x 3.35mm	£18.94£22.73
35mm x 2.65mm	£18.94£22.73
35mm x 3.35mm	£18.94£22.73
38mm x 3.00mm	£18.94£22.73
38mm x 2.65mm	£18.94£22.73
38mm x 3.35mm	£18.94£22.73
45mm x 3.35mm	£18.94£22.73
40mm x 3.00mm	£18.94£22.73
40mm x 3.35mm	£18.94£22.73
50mm x 3.35mm	£18.94£22.73
65mm x 3.35mm	£18.94£22.73

Size

Clear

Credit Plans Available

Description

Copper clout nails are the go-to fixing for natural slate roofing, and for good reason. Unlike galvanised or bright steel, copper doesn’t rust. On a slate roof that’s expected to last 80 to 100 years, that matters. These 1kg copper clout nails are available in a wide range of sizes, from 25mm all the way up to 65mm in length, with shank diameters from 2.65mm to 3.35mm, so you can match the nail to the slate thickness and batten gauge without compromise.

The large flat head is what makes a clout nail a clout nail. It spreads the load across the surface of the slate rather than pulling through, which is particularly important on natural stone where a small fixing point under stress can eventually cause cracking. Done right, a copper nail and a natural slate are a pretty good long-term partnership.

Where Copper Clout Nails Are Used on Site

The obvious application is natural slate roofing, where copper is essentially the only sensible choice. Lead flashing, copper sheet work, and some fibre cement slate systems also call for copper fixings to avoid the galvanic corrosion you’d get if you mixed metals. Roofing felt and underlay can also be tacked with smaller copper clout nails where the substrate or specification calls for it.

The range of sizes here covers most roofing scenarios. Shorter nails in the 25mm to 32mm range suit thinner slates on closer-boarded decks. Longer options like 45mm, 50mm, and 65mm come into their own on deeper battens or where the slate itself is on the thicker side. Worth checking your specification before ordering if you’re working to an architect’s schedule, since some heritage or conservation projects will specify minimum shank diameters as well as length.

Supplied in 1kg bags, these are practical for both one-off repairs and larger re-roofing jobs. A kilogram goes further than you might expect on the lighter gauges, less so on the heavier 3.35mm shank sizes. If you’re pricing up a full roof, it’s worth working out your quantities accurately rather than guessing. Call us for bulk buy pricing if you need more than a few bags.

Pro Tip: Always nail slate at the correct nailing point, typically 25mm to 35mm from the top edge of the slate, not the centre, to avoid stress fractures and ensure the nail head bears properly against the back face.

Applications

Copper clout nails are used primarily in natural slate roofing, where a rust-free fixing is essential for the long-term performance of the roof. They are the standard choice for roofers working on new builds, re-roofs, and heritage or conservation projects where specification often requires copper fixings specifically. Beyond slate, they're used in lead work, copper sheet roofing, and anywhere dissimilar metal corrosion would be a concern with steel alternatives. Some roofing contractors also use smaller copper clouts for securing underlays and breathable membranes to timber substrates.

Best For

Fixing natural roofing slates
Lead and copper sheet work
Heritage and conservation roofing projects
Roofing felt and underlay tacking
Any application where rust-free fixings are required

Available Sizes

25mm x 2.65mm
25mm x 3.35mm
30mm x 2.65mm
30mm x 3.00mm
30mm x 3.35mm
32mm x 2.65mm
32mm x 3.00mm
32mm x 3.35mm
35mm x 2.65mm
35mm x 3.00mm
35mm x 3.35mm
38mm x 2.65mm
38mm x 3.00mm
38mm x 3.35mm
40mm x 3.00mm
40mm x 3.35mm
45mm x 3.35mm
50mm x 3.35mm
65mm x 3.35mm

Key Properties

Rust-free copper construction
Large flat clout head for load spreading
Compatible with natural slate and copper sheet
No galvanic corrosion risk with copper or lead
Supplied in 1kg bags

Not suitable for: Not suitable for use with fibre cement slates or concrete interlocking tiles where manufacturer specifications require specific steel or stainless fixings. Not intended for structural timber connections or general carpentry applications.

Usage

Select the correct nail size for your slate thickness and batten depth. As a general guide, nail length should be at least twice the thickness of the slate plus the batten depth, though 25mm to 38mm covers the majority of standard natural slate applications. Mark or follow the manufacturer's nailing point on the slate, typically 25mm to 35mm from the head of the slate.

Drive the nail squarely through the pre-punched hole in the slate and into the batten beneath. The nail head should sit flush against the back face of the slate without being driven so hard it stresses the stone. Copper is softer than steel, so it drives cleanly with a standard roofing hammer. Avoid over-striking, which can deform the head or crack thinner slates.

Select the appropriate nail length and shank diameter for your slate thickness and batten gauge
Check the slate's pre-punched nail holes are positioned correctly before fixing
Position the slate on the batten and align the nail hole over the batten centre
Drive the copper clout nail through the hole and into the batten using a roofing hammer
Ensure the nail head sits flush against the slate face without being over-driven
Check the slate sits flat and the head has not cracked or deformed around the nail hole

FAQs

Why do I need to use copper nails rather than galvanised steel for natural slate?

Natural slate roofs are designed to last many decades. Galvanised nails can corrode over time, especially in coastal or industrial environments, causing what's known as 'nail sickness', where fixings fail and slates slip. Copper doesn't corrode in the same way, so the fixing remains sound for the life of the roof.

How many nails are in a 1kg bag?

It varies depending on the size. Lighter gauges such as 25mm x 2.65mm will give you considerably more nails per kilogram than a heavier option like 65mm x 3.35mm. If you need to calculate quantities precisely for a job, it's worth contacting us and we can give you an approximate count for the size you're ordering.

Can I get bulk pricing if I need a large quantity?

Yes. These are priced per 1kg bag, but if you're ordering a significant quantity for a re-roofing job or ongoing work, call us directly for bulk buy pricing. We supply trade across the UK and bulk discounts are available.

Technical Information

These clout nails are manufactured from solid copper, giving them full corrosion resistance without relying on a coating that can wear or crack over time. The large flat head is designed to bear against the slate face without pulling through, distributing fixing load evenly. Shank diameters range from 2.65mm to 3.35mm, with the heavier gauges providing greater resistance to wind uplift on exposed elevations.

Material	Solid copper
Head Type	Large flat clout head
Available Lengths	25mm, 30mm, 32mm, 35mm, 38mm, 40mm, 45mm, 50mm, 65mm
Available Shank Diameters	2.65mm, 3.00mm, 3.35mm
Pack Size	1kg bag
Application	Natural slate roofing, lead and copper sheet work

Additional information

Weight	N/A
Size	25mm x 3.35mm, 30mm x 2.65mm, 30mm x 3.35mm, 35mm x 3.35mm, 38mm x 2.65mm, 38mm x 3.35mm, 40mm x 3.35mm, 45mm x 3.35mm, 50mm x 3.35mm, 65mm x 3.35mm, 25mm x 2.65mm, 30mm x 3.00mm, 32mm x 2 65mm, 32mm x 2.65mm, 32mm x 3 35mm, 32mm x 3.00mm, 32mm x 3.0mm, 32mm x 3.35mm, 35mm x 2 65mm, 35mm x 2.65mm, 35mm x 3.00mm, 38mm x 3.00mm, 40mm x 3.00mm
Box Quantity	1
Product Type	Copper Clout Nails