Best Screws for Metal Roofing

Attention to detail is perhaps the most important rule in metal roofing. You can buy the best of materials but end up with a leaky roof if you don’t understand the simplest things like which kind of screw to use!

One of the questions that I encounter a lot is: “what are the best screws for metal roofing?”. In this article, I have tried to answer this question and select products that I like to use in my projects.

Metal Roofing Screws #10 (500 Count) Painted Hex Head Screw with EDPM Washer. Self Starting Metal to Wood Siding Screws. Free Magnetic Driver with Order! (1.5 Inch, Barn Red, 500)
Metal Roofing Screws: (250) 10 x 1-1/2"  Brite White Hex Head Sheet Metal Roof Screw. Self Starting Metal to Wood siding Screws. EPDM Washer. Colored Head
#10 Size, 1 1/2" Length (38mm) - Self Tapping Screw - Self Drilling Screw - 410 Stainless Steel Screws = Exceptional Wear and Very Corrosion Resistant) - Phillips Pan Head - 100pcs
Best For
Rainy Areas
Windy Areas
Hot Areas
Head Style
Hex, ¼ inch
Hex, ¼ inch
Pan
Material
Metal
Alloy Steel
410 Stainless Steel
Washer
EPDM
EPDM
NA
Painted Head
Galvanized
Metal Roofing Screws #10 (500 Count) Painted Hex Head Screw with EDPM Washer. Self Starting Metal to Wood Siding Screws. Free Magnetic Driver with Order! (1.5 Inch, Barn Red, 500)
Best Screws for Metal Roofing
Best For
Rainy Areas
Head Style
Hex, ¼ inch
Material
Metal
Washer
EPDM
Painted Head
Galvanized
Metal Roofing Screws: (250) 10 x 1-1/2"  Brite White Hex Head Sheet Metal Roof Screw. Self Starting Metal to Wood siding Screws. EPDM Washer. Colored Head
Best Screws for Metal Roofing
Best For
Windy Areas
Head Style
Hex, ¼ inch
Material
Alloy Steel
Washer
EPDM
Painted Head
Galvanized
#10 Size, 1 1/2" Length (38mm) - Self Tapping Screw - Self Drilling Screw - 410 Stainless Steel Screws = Exceptional Wear and Very Corrosion Resistant) - Phillips Pan Head - 100pcs
Best Screws for Metal Roofing
Best For
Hot Areas
Head Style
Pan
Material
410 Stainless Steel
Washer
NA
Painted Head
Galvanized

What Screws to Use For Metal Roofing?

When you are in the market for screws for the first time, you might find it a bit difficult to understand what exactly does ⅜-16″ means or what is a Panhead screw? I will try to explain these things below in a non-technical way.

Best Screws for Metal Roofing

Length

The length of your screw usually depends on how thick your overall installation is going to be. Make sure also to include the length of the drill bit if you are using a self-driller screw. Whatever be the overall thickness, round it off to the nearest half-inch. 1.5-inch screws are the standard norm for metal roofing, but as I said, it depends on the thickness of the two layers getting joined together.

Do keep in mind that longer screws are not always better. There is additional torsion on longer screws when you are driving them in, which means they can break more easily.

What Screws to Use For Metal Roofing

Thread Count per Inch

When installing a roof, you would likely fasten a thin and a thick ply or sheet together. TPI will depend on how thick the thicker ply is. As a rule of thumb, TPI is the same as the diameter of gauge steel and higher for sheet and plate.

Diameter

You can measure the diameter of the screw by the numbers that come in the screw description (#2-#16). For heavy metal roofing, #12 to #14 is ideal. If the metal roof is not very thick, #10 will also do. For woodwork, #6 is better.

Material

Coated metal fasteners are the norm, but the thing to note is the interaction between the coating and the metal. Galvanic corrosion can lead to premature breakages, and nobody likes a leaky roof.

Remember, if you live in a place where there is a lot of rain, even stainless steel screws can rust a bit. You can consider using galvanized screws in such places. When the Zinc starts to deplete later, just replace it with a bigger one.

Self-Drilling Screws

These types of crews do not need a pre-drilled hole in your metal roofing. They have a built-in drill bit that can save you a bit of time, but it may not always be the best idea to use them. The screw’s head should be as big as the drill bit. Otherwise, the threads will not fit into the pre-drilled holes.

Self-drilling on the spot lets you have a once overall to make sure that everything falls in place. People do use self-drillers, but mostly for thinner steel going into thicker steel.

Screws to Use For Metal Roofing

Washers

What kind of washer does the screw come with? Plastic ones stop leakages. But you must make sure that the washer is perfectly in place, compressed neither too loose nor too tight. If it’s too tight, they get damaged, leaving the screw open for damage too. If it’s too loose, well, the rainwater coming into your room will better tell you what the problem with that is!

Plastics degrade. The roof is anyway exposed to the sun’s UV rays all day, so plastic might not be a great option in sunny places. Neoprene might be better in these conditions.

Fastener Profiles

There are many different types of fastener profiles. For example, Pancake fasteners are used when you have a low-profile installation at hand or Torx, Philips, or Hex sockets. They have an oversized dome under the screw head for the bigger washer. You can use a Hex head or pancake head screw for your roofing needs.

Best Screws For Metal Roofing

For example, I have selected 1.5inch screws below in #10,#12, and #14 gauges. You can select threads of different sizes and gauges based on your needs.

EAGLE 1 # 10, 1.5 inch

What I loved about the Eagle 1 screws is the painted head and Zinc shaft. These screws will last a lifetime and then some. If you live in a place with a lot of rain, then these are the screws to go for. They will not rust, and they will keep the roof in a place like new for years.

Features:

  • #10, 1.5 inch
  • Painted Head
  • External Hex head
  • Zinc Coated Stainless steel material
  • ¼ inch hex washer
EAGLE 1 #10, 1.5 inch

Self-starting: These screws are easy to install because they are self-drilled.

Painted Head: The metal head is painted red. Not only does it give a unique look to your roof, but it also keeps the head free from rust and corrosion.

Zinc plated: The screw has a corrosion-free body due to the coating of Zinc on its outer layer.

EPDM Washer: EPDM is a kind of rubber. Its primary characteristic is that it is weather resistant. EPDM washers protect your roof from leaking water to the floor below.

Pros:

  • Corrosion Free (Zinc coating, Painted head)
  • Weather-proof washer
  • Easy installation

Cons:

  • The threading is a bit dull, so the self-tapping takes a bit of effort.

These are one of the best screws for sheet metal roofing. Their corrosion and rust resistance, combined with their weather-proof washers, makes them perfect for sheet metal projects in areas that receive heavy rainfall.

Check Price and User Reviews

Jake Sales #10 x 1-1/2″ Metal Roofing Screws

These are the best replacement screws for metal roofing on the market. They have a painted head and are great for metal to wood sidings. These screws also have an EPDM washer and a coating of polyurethane along with a galvanized body for longevity.

Features:

  • Painted Head
  • Polyurethane coating
  • Metal to wood siding screws
  • Galvanized body
  • Self-starting
Jake Sales #10 x 1-1/2

Painted Head: The colored hex head of the screw is resistant to corrosion as well as weather. It is double PU coated for more longevity.

Self-starting: The screws are pre-drilled, so they are easy to install

Galvanized: If you are looking for corrosion resistance, this is one of the best screws for you.

EPDM Washer: As mentioned earlier, the EPDM washer has high resistance to heat and weather.

Pros:

  • Corrosion and Weather resistant
  • Great for metal to wood sidings

Cons:

  • It takes quite a bit of pressure to drill them in

If you are looking for the best metal roof replacement screws, you don’t have to look any further. These screws will fill in easily, last longer, and will keep water out of your home.

Check Price and User Reviews

The Cimple Co #10 x 1-1/2″ Philips Panhead Screws

I thought I would end the list with a Phillips Panhead screw since the other two were not. This screw is a nice 410 stainless steel screw, very strong, resistant to heat and stress. It will hold your metal roof well.

Features:

  • 410 Stainless Steel
  • Phillips Panhead
  • Self-starting
The Cimple Co #10 x 1-1/2

410 Stainless Steel: 410 stainless is best in class. It has high heat and corrosion resistance and provides the kind of strength that will hold your roof for years to come.

Self-starting: The screws are pre-drilled, so they are easy to install

Versatile: These screws can be used for metal to metal and metal to wood projects. You can use them on gutter guards, fencing, roofing, and many other DIY projects.

Pros:

  • Corrosion Resistant
  • Heat Resistant
  • Durable

Cons:

  • The screws tend to get stripped out, as per one user.

If you don’t love the thought of washers and are looking to buy many screws meant for several projects, not just roofing, these screws will hold you in good stead for almost any and every application.

Check Price and User Reviews

Wrap Up

Well, I am not saying that screws are the most important thing to consider in your metal roofing project. But you know what – they are critical!

Choosing the right screw requires a fair bit of research if you’re new to the whole game. I hope my buyer’s guide at the beginning of this article helped you hone into the right screw for your metal roofing project.

Last update on 2021-09-13 / Affiliate links / Images from Amazon Product Advertising API