
Pancake head screws are distinguished by their round, low-profile heads, which make them ideal for fastening panel clips to wood, as well as for roofing projects, HVAC work, and building carports or barns. Pancake screws are self-drilling, which means that drilling and fastening can be done in the same motion. They come in a variety of materials, including carbon steel and stainless steel, and in different sizes, such as 10-inch x 5/8-inch, 10-inch x 1-inch, and 12-inch x 3/4-inch.
Characteristics | Values |
---|---|
Head Style | Pancake Head |
Substrate | Steel & Stainless |
Diameter | #10, #12, #14 & 1/4" |
Length | 1-1/8”, 1-5/8”, 2-1/8”, 5/8", 1" |
Drill Point | #3 Self Drilling Point |
Coating | Silver Ceramic Coated, DACROMET® Coated |
Self-drilling
#8 pancake head screws are available as self-drilling screws. Self-drilling screws are used when fastening into steel or other metals and are typically used to join materials like sheet metal. They are identified by the unique point or flute at the end of each screw.
The Phillips pancake head self-drilling screws are made of 410 stainless steel, which is harder than normal 18-8 stainless steel. This, along with the self-tapping threads and the TEK self-drilling point, makes installation into metal a breeze. Pancake head screws are ultra-low profile with an undercut bottom and are often used for both decorative and practical reasons.
The Bi-Flex structural screws are bi-metal self-drilling tapping screws that provide the corrosion resistance of 300 series stainless steel and the efficiency of drill screws. They are suitable for use in both steel and aluminium.
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Metal to metal fastening
Pancake head screws are ideal for metal-to-metal fastening. They are distinguished by their round, low-profile heads, which make them suitable for projects where appearance is crucial. Their low-profile design ensures that the fastener won't protrude above the surface, reducing the risk of damage and interference with other objects.
For metal-to-metal applications, pancake head screws are often used in HVAC, duct work, and steel stud framing. They can efficiently pierce through metal sheets, providing a secure and long-lasting hold. The Phillips/Square drive design of these screws offers a self-centering effect when used with a quadrex screwdriver, enabling straighter driving and a tighter fit.
Pancake head screws are available in various materials, such as carbon steel and stainless steel, to meet specific project requirements. For instance, the #10 x 5/8-inch Phillips pancake head self-drilling screws from Teks are suitable for metal-to-metal fastening in HVAC, duct work, and steel stud framing.
When selecting pancake head screws for metal-to-metal fastening, it is essential to consider the corrosion resistance and durability of the screws. Stainless steel options offer excellent protection against rust and are suitable for outdoor projects or applications in moist or humid climates.
Additionally, the size and length of the screws should be chosen based on the specific application. Pancake head screws are typically available in multiple sizes, such as 10-inch x 5/8-inch, 10-inch x 1-inch, and 12-inch x 3/4-inch, ensuring contractors, roofers, and construction professionals can find the right fit for their projects.
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Roofing
#8 pancake head screws are ideal for roofing applications, offering a secure and durable fastening solution.
The low profile of the pancake head screw is particularly well-suited for roofing. The ultra-thin, flat head design ensures the screw lays flush with the roofing material, preventing any unsightly dimpling or puckering of the panels. This is crucial for maintaining the integrity of the roof and preventing water ingress or weather damage.
Pancake head screws are available in various materials, including carbon steel, 304 stainless steel, and zinc-plated steel. The choice of material depends on the specific roofing application and the desired level of corrosion resistance. For example, 304 stainless steel offers excellent corrosion resistance, making it suitable for harsh environments and applications such as animal confinement or aluminum liner panel roofing.
Additionally, pancake head screws can be purchased with different types of drives, such as square drive, Phillips drive, or a combination of both. The square drive is designed to reduce the risk of cam-out and allow for single-handed installation. On the other hand, the Phillips drive is more common and readily available.
When using pancake head screws for roofing, it is important to consider the substrate and the thickness of the roofing material. For example, #10 pancake head screws are commonly used for metal-to-wood roofing applications, ensuring a secure and long-lasting hold between the metal roof panels and the wooden substrates.
Overall, #8 pancake head screws offer a versatile and reliable option for roofing, providing a strong and discreet fastening solution that can be tailored to the specific requirements of the project.
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Corrosion resistance
Pancake head screws are available in a variety of materials, each with different corrosion-resistant properties. The most suitable material will depend on the intended application of the screws. For example, if you are building a boat, screws made from silicon bronze are ideal as they resist corrosion and don't promote rot in the surrounding wood. However, they are very expensive, so it is best to reserve them for boat-building.
For most outdoor applications, stainless steel is the best choice. It is well worth the money if you want to avoid rust or stain marks on your project. The most widely available stainless steel screws are 304 and 305-grade, both of which are appropriate for general use. 305-grade screws have slightly greater corrosion resistance, and for maximum corrosion resistance in extreme environments, 316-grade stainless steel is the best option.
Another option for outdoor use is coated steel fasteners. The thicker the galvanized coating, the more durable the screw will be. However, it is difficult to find hot-dipped galvanized screws as the thick coating tends to clog the threads and driving recess of the screw, making it hard to drive. Mechanically galvanized screws are generally suitable for decks and other outdoor projects made of pressure-treated lumber, but they should not be used with lumber in contact with the soil, in high-moisture areas, or in areas with salt content in the air.
For pressure-treated wood, it is best to ask the retailer about recommended screws and fasteners, as there are new-generation pressure-treated woods that require special anti-corrosion technologies. Multiple-coated screws are also more corrosion-resistant and are suitable for use with cedar and redwood decking.
For metal-to-metal fastening, pancake head screws are available in zinc-plated Phillips drive, carbon steel, and stainless steel.
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Affordability
Pancake head screws are a highly affordable fastening solution. They are often used in metal roofing, garage or outbuilding construction, and HVAC work.
Pancake head screws are distinguished by their round, low-profile heads, which make them ideal for fastening panel clips to wood, as well as many other applications.
When it comes to affordability, pancake head screws offer a cost-effective solution for budget-conscious consumers. They are typically made from carbon steel or stainless steel, providing excellent corrosion resistance and long-lasting performance.
The Hillman Group, for example, offers a pack of 10 x 5/8-inch pancake head self-drilling screws at a competitive price point on Amazon. Teks also offers a pack of 190 Phillips pancake head self-drilling screws for metal-to-metal fastening, available at Home Depot.
In addition, All Points Fasteners provides a wide range of pancake head screws in various sizes and materials, including zinc-plated and stainless steel options. They offer case-quantity bulk pricing, making them a cost-effective choice for contractors, roofers, and construction professionals.
With their versatility, ease of use, and competitive pricing, pancake head screws are a great choice for any project requiring a reliable and affordable fastening solution.
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Frequently asked questions
Pancake head screws are used for fastening panel clips to wood, building carports or barns, roofing projects, and HVAC work. They are also used for fastening metal to wood or metal to metal.
Pancake head screws have low-profile heads, which means they won't extrude above the surface and are less likely to come into contact with other objects. They are also Phillips/Square drive, which makes them easier to install as they provide a self-centering effect when combined with a quadrex screwdriver. Additionally, they are available in multiple sizes and offer corrosion resistance, especially when made of stainless steel.
8 pancake head screws are available for purchase from a variety of retailers, including The Home Depot, Amazon, and All Points Fasteners.