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To be effective, fasteners for roof sheathing need to match the panel, substrate, and exposure. Supply Maverick stocks roof sheathing fasteners for metal-to-OSB, metal-to-wood, and metal-to-metal applications, including ethylene propylene diene monomer (EPDM) washered options designed to help seal the fastening point against weather.
If you’re ordering for a metal roofing job, a siding project, a repair, or a stocked service truck, start with the material you’re fastening into. From there, compare the washer, the cap material, the thread, the point, the length, and the color. Most orders placed before 12 noon EST ship the same day, and bulk quantity pricing is available on eligible products.
Supply Maverick sells the fasteners and metal roofing supplies, but your final installation plan should follow local code, as well as the codes set by the sheathing manufacturer, the metal panel manufacturer, and a qualified installer.
Roof sheathing screws are easier to choose once the substrate is understood. A screw that bites into oriented strand board (OSB) has a different job than a screw made for wood framing or steel.
| Substrate or application | Better fastener match | Product example | Check before ordering |
| Metal roofing to OSB | Aggressive threads with an exterior sealing washer for grip in wood-based sheathing. | #12 TuffGrip Metal to OSB EPDM Washered Fasteners | Panel stack, screw length, color, and bag count. |
| Metal roofing to wood framing | A Type 17 point or a wood-focused thread made for metal-to-wood fastening. | #10 ProZ Aluminum Cap Metal to Wood EPDM Washered Fasteners | Cap style, washer style, and the 5/16-inch driver requirement. |
| Metal panels over wood with a stainless cap preference | A stainless steel cap where the fastener head will be exposed to regular weather. | #10 ProCap Stainless Steel Cap Metal to Wood EPDM Washered Fasteners | Pre-drilling guidance, head profile, and driver fit. |
| Metal sidewall or roofing panels on a wood frame | A Hi-Lo metal roofing and siding fastener with a mini self-driller tip. | #11 PG Hi-Lo EPDM Washered Metal Roofing/Siding Fasteners | Length, finish, panel thickness, and wood framing conditions. |
| Steel-to-steel attachment | A self-drilling metal-to-metal fastener for steel framing or steel panel work. | #12 ProZ Aluminum Cap Metal to Metal EPDM Washered Fasteners | Drill point, length, metal thickness, and panel specs. |
This category is built for jobs where metal roofing panels, siding panels, or related metal components need to be fastened to OSB, plywood, wood framing, or steel. Some buyers are putting together a full metal roofing order, and others need a few bags to finish a repair. Either way, the same rule applies: match the fastener to the substrate first.
For exterior metal roofing and siding, the washer deserves a closer look. Many Supply Maverick roof sheathing fasteners use an EPDM washer to help seal around the screw head once the fastener is driven correctly. The head and the washer should sit cleanly against the panel. If the screw is under-driven, the washer may not seal well; if it’s over-driven, the washer can get crushed.
Thread and point style matter too. Hi-Lo threads and deep threads can improve bite in wood-based materials, while Type 17 points and mini self-driller tips help the screw start cleanly in the right application. If you’re comparing roof sheathing screws by size alone, you may miss the part that actually controls how the fastener performs.
Color is usually the last step in the selection process. Many screws are available in painted options so the heads can blend with the panel. Color names are generic, and screen settings can affect how images appear, so confirm the product model and finish name before placing an order for visible fasteners.
A single roof sheathing screw size would simplify ordering. In actuality, real jobs have more variables. The right screw depends on the panel, the sheathing, the support below it, the coating requirement, and the fastening schedule for the project.
| Selection point | What to look for | Why it matters |
| Substrate | Match the fastener to OSB, plywood, wood framing, or steel. | The substrate determines the thread design and point style you should compare. |
| Thread type | Look for Hi-Lo threads, deep threads, or aggressive wood-focused threads for wood-based materials. | A better bite helps the screw set cleaner and hold more reliably. |
| Point type | Choose a Type 17 point, a mini self-driller tip, or a steel drill point based on the fastener’s intended use. | The point affects how the screw starts and how much prep work the installer may need. |
| Washer type | Use EPDM washered fasteners for exposed metal roofing and siding fastening points. | The washer helps seal the screw head when it is seated correctly. |
| Coating or cap | Compare stainless steel caps, zinc-aluminum alloy caps, zinc-plated shanks, mechanical galvanizing, and anti-corrosion coatings. | The cap and the coating affect weather resistance and appearance. |
| Length | Select enough length for the panel stack and the substrate. | A short screw may lack bite. An oversized screw can be wrong for the assembly. |
OSB is common for roof decking, and it needs a fastener that can grab a wood-based panel without tearing up the fastening point. For metal roofing over OSB, start with the #12 TuffGrip Metal to OSB EPDM Washered Fasteners.
The #12 TuffGrip is designed for metal-to-OSB applications, featuring a #12 shank, deep threads, a complete cover washer, a 1/4-inch hex head, mechanical galvanizing, and a Type 17 point. That combination makes sense for buyers who need metal roofing screws that can fasten into OSB while adding a washered seal at the head.
One caution worth mentioning, however, is that structural roof sheathing fastening schedules often reference nails, including 8d common nails in many standard sheathing details. If the work involves attaching structural roof decking, don’t assume a screw is a suitable substitute. If the work involves metal roofing over OSB, compare metal-to-OSB fasteners and check the panel manufacturer’s instructions before ordering.
Metal-to-wood fasteners are used when metal panels are fastened to wood framing, plywood, or wood-based decking. In this group, buyers usually compare cap material, point style, thread pattern, washer design, driver size, and color.
The #10 ProZ Aluminum Cap Metal to Wood EPDM Washered Fasteners are a great fit for metal-to-wood work. They include a zinc-aluminum alloy cap, a zinc-plated carbon steel shank, an EPDM washer, a 5/16-inch hex head, and a Type 17 point. The washer head design also helps reduce overdriving, which is helpful when the fastener is exposed on metal roofing or siding.
For a stainless cap option, compare the #10 ProCap Stainless Steel Cap Metal to Wood EPDM Washered Fasteners. This product uses a 304 stainless steel cap, Hi-Lo threads, an EPDM washer, and a 1/4-inch hex head. Pre-drilling panels is recommended as some nut setter bits may not sit properly on the rounded ProCap head.
EPDM washered fasteners are used on exposed exterior fastening points since the washer helps seal around the screw head. That seal depends on proper driving, so the washer should be compressed enough to sit flat with no visible gap while still holding its shape.
This may seem like a small detail, but it affects the roof over time. A cleanly seated washer can help limit water entry at the fastener point, whereas a washer that’s crushed, tilted, or left loose can create problems that don’t show up until after the weather turns.
If the screw head will be exposed to rain, snow, or intense sun exposure, browse EPDM washered metal roofing screws and match the fastener to the substrate. Supply Maverick carries options for metal-to-OSB, metal-to-wood, metal-to-metal, and siding applications.
Fastener spacing should come from the project spec, the local code, and the manufacturer’s instructions. As a general reference, many wood structural panel roof sheathing schedules use 8d common nails placed 6 inches on center at supported panel ends and edges and 12 inches on center at intermediate supports. Fasteners are commonly kept about 3/8-inch back from panel ends and edges.
That guidance is useful for planning, but it shouldn’t replace the installation requirements for your specific roof project. High-wind areas may need more fasteners; metal panel systems may have their own fastener patterns; and repairs also call for a different approach than a full roof installation.
Placement affects performance and appearance. Missed framing, edge blowouts, tilted screws, and uneven fastener lines can all create headaches on a metal roof, not to mention unsightly errors that draw the eye. If you’re unsure which spacing applies, confirm the fastener type, substrate, panel system, and roof zone before you buy.
High-wind fastening schedules are project-specific. Before ordering, confirm the fastener type, spacing, substrate, roof zone, and local code requirements with your panel manufacturer or a qualified installer.
Wind pressure is rarely uniform across the whole roof; edges, eaves, gable ends, ridges, and corners may have tighter fastening requirements than interior roof areas. The same fastener family may still need a different length, count, or spacing pattern on another building.
For orders in wind-prone areas, it helps to decide the installation schedule before loading the cart. That way, you can order enough fasteners for the full job, including roof zones that need closer spacing.
Supply Maverick is built for buyers who need specialized metal roofing and siding supplies without having to plod through a slow local supply chain. You’ll find hard-to-find fasteners, washered screws, multiple color options, cap choices, and bagged jobsite quantities in one place.
Most orders placed before 12 noon EST ship the same day, which helps when one missing bag can slow down a whole crew. Eligible fastener products also show bulk-quantity discounts on the product page, and wholesale pricing is available to qualifying buyers. Net 30 accounts are available for online purchases.
Supply Maverick is a division of Mid-Michigan Metal Sales, so the online catalog is supported by real metal building component experience. When you’re sorting through roof sheathing fasteners by substrate, point type, washer, cap, finish, and quantity, that level of expertise is invaluable.
Fasteners are just one part of a clean metal roofing assembly. If you’re ordering roof sheathing fasteners, check the related supplies you may forget until installation day.
| Related category | Product type | Use |
| Fasteners | fasteners and metal roofing screws | Broader browsing for screws, nails, rivets, and specialty fasteners. |
| EPDM with metal grommet screws | EPDM washered metal roofing screws | Sealed exterior fastening for metal panels. |
| Steel-to-wood EPDM screws | steel-to-wood EPDM fasteners | Metal panels over wood framing and wood-based substrates. |
| Foam closure strips | foam closure strips | Gap sealing at panel profiles. |
| Pipe boot flashing | pipe boot flashing | Roof penetration sealing around pipes. |
For structural roof sheathing, many standard schedules reference 8d nails. For metal roofing over sheathing, you may need EPDM washered screws matched to OSB, plywood, wood framing, or steel. Check the project specs, the local code, and the product details before ordering fasteners for roof sheathing.
Screws are used in certain metal roofing, siding, and repair applications, especially where metal panels fasten into OSB, plywood, wood framing, or steel. Structural roof sheathing attachment still needs to follow the approved fastening schedule for that assembly.
For metal roofing over OSB, compare the #12 TuffGrip Metal to OSB EPDM Washered Fasteners. They use a #12 shank, deep threads, a complete cover washer, mechanical galvanizing, a 1/4-inch hex head, and a Type 17 point for metal-to-OSB work.
An EPDM washer is a synthetic rubber washer under the fastener head. On exposed exterior fasteners, it helps seal the fastening point when the screw is driven straight and seated to the correct depth.
A common reference for wood structural roof sheathing is 6 inches on center at supported panel ends and edges and 12 inches on center at intermediate supports. High-wind zones, roof edges, gable ends, eaves, ridges, corners, and local code requirements may call for tighter spacing.
Exterior roof fasteners should be chosen for the weather exposure, material compatibility, substrate, and panel system. Depending on the product, Supply Maverick options include stainless steel caps, zinc-aluminum alloy caps, zinc-plated shanks, mechanical galvanizing, and anti-corrosion coatings.
Many Supply Maverick roofing fasteners have available color options. Color names are generic, and product images can vary by screen, so confirm the product model and color name before ordering for a visible metal roofing or siding panel.
Eligible Supply Maverick fastener products display bulk quantity pricing on the product page. Many 250-count fastener bags include a price tier for orders of 10 or more bags.
