#8 Flat head slotted bronze wood screws. Traditional boatbuilders love these Silicon Bronze wood screws because they have cut threads and the full-bodied diameter shank. Unlike rolled thread screws with their reduced shank, these screws have a shank diameter that is the same size as the outside of the threads. This completely fills the clearance hole normally drilled for the shank thus creating a waterproof seal. Remember to drill a body hole for the screw shank and a pilot hole for the threads. All screws are threaded for 2/3 of the shank.
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Silicon Bronze is the traditional choice for marine construction. It is corrosion resistant, helps prevent rot around the screw holes when used under water, and is relatively strong. Although stronger than Solid Brass, Silicon Bronze screws are not as strong as Stainless Steel. They require a carefully sized pilot hole to avoid breakage. We recommend drilling twice (once for the root and once for the shank) as well as using a screw lubricant to avoid breakage.
MET / STD:
Are these screws made in the USA?
If the threads are cut, the come from italy. If the are rolled, the are probably american. You can tell Italian as thread edges are very sharp. Ones we bought from Jamestown were from Italy.
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#8 Bronze Wood Screw
I have not had issues with these breaking. I drill one pilot hole and use a lube of linseed oil or wax, or whatever is handy. they work well in the Ash and Spruce I use.