No matter where you choose to source your stainless deck screws, be sure to pay attention to the specifications, including the size, material, and corrosion resistance, to ensure that you're selecting the right screws for your specific project requirements. You can search for specific brands and sizes on their website or visit a nearby Lowe's store to purchase the screws you need. Lowe's: Lowe's is another major home improvement retailer that carries a range of stainless steel deck screws. You can order online or visit your local Home Depot store to purchase the screws you need.Ĥ. View Product Marine Grade Stainless Steel 10 X 3 in. Home Depot: Home Depot is a well-known home improvement retailer that carries a wide selection of deck screws, including stainless steel options. These Deck Mate flat-head wood screws include a Torx bit for easy installation, and the steel material offers dependable strength. You can search for specific sizes, brands, and styles to find the right screws for your needs.ģ. Amazon: Amazon has a wide selection of stainless steel deck screws, including A4 stainless steel screws, which are the highest corrosivity class for stainless steel screws. You can purchase these directly through FastenMon's website or through Amazon.Ģ. FastenMon: The FastenMon #10 x 3-1/2 Inch Stainless Steel 304 Wood Screws are highly rated and come in a pack of 100, including a T25 Star Drive Bit. I understand that ss screws are stronger and less vulnerable to shearing due to thermal expansion.Īny thoughts or suggestions are very welcome.There are several reputable suppliers where you can source specific stainless deck screws. I see two solutions: (1) cut the long boards to reduce the cumulative expansion along the boards and leave a 3/16" space between butt ends to allow some movement and (2) move to stainless steel or thicker deck screws. That being said, I took care to bury the screws slowly so as to reduce the friction heat build-up in the screws and perhaps the installer didn't take as much care. So, yesterday, I lifted most of the boards on these two long stairs and rescrewed them - it's a long gd process but I put the identical screws in place of the previous ones and see no reason why I should expect a different outcome in the future. I know that this is a common problem out there but I am worried that it's a safety issue given that the boards in question are on stairs - being down to six good screws out of 16 on a stair is not encouraging after only two years. The condition doesn't seem to be exacerbated by bad installation (I believe that the installers sunk pilot holes and all screws are spaced and angled correctly (90 deg). Plus, they're long boards (12-14' long) so cumulative thermal expansion has to be an issue. The boards that get a lot of sunlight at this time of the year are showing the biggest effects. The deck gets light use so this problem is definitely caused by thermal expansion of the boards. As is typical of screws that are just not up to task, the ones at the ends of the boards are the most vulnerable but even ones in the middle are busting. I pulled up one board yesterday and 10 of the 16 screws on that board were broken and six of those required me to extract parts of screws buried in the risers. Problem is that the ones on the stairs (and a few others) keep breaking - and often the break point is below the surface of the deck's subframe timber. Hidden fasteners on the surface but boards on stairs are secured with typical 3" composite deck screws. We had a composite deck installed two years ago by a big and reputable local firm who do a lot of composite decks in the area so they should know what they're doing.
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