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Silicon Bronze Wood Screws
These Silicon Bronze screws have cut threads and the full-bodied diameter shank desired by boatbuilders. 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. These wood screws have a square drive recess to help prevent cam out.
August 16, 2021
These are the best screws I found. They aren't perfect. You need a lot of down force to keep them from stripping out. They are designed for boat building so if your outer boat is thick then you probably need to drill it out to a larger diameter to get it too pull tight.
July 19, 2021
My recommendation is, these screws like other soft metal screws need to have a steel screw run in first before you install the bronze screw. I had trouble with them stripping out. Also you might want to consider running a larger pilot hole thru the first board to keep the screws from grabbing that section and not pulling joints tight. Yes, I did use counter sinks with the correct drill bit and length but still had issues.
June 8, 2020
square drive i the way to go.
March 4, 2020
Great product, Great price, GREAT service!
August 13, 2019
Silicone bronze is what they recommend for boat building. They are quite expensive and the square heads do strip out pretty easily, so pre-drilling is a must. That said. they do what they are supposed to do.
June 3, 2019
These are the first order for screws from Jamestown and probably my last. These screws are very dull and take a lot of effort to screw in my mahogany.
February 25, 2019
Uniform lot, all even finish. Very nice hardware, we'll see how it holds up
October 19, 2018
Building 14 ft runabout
August 27, 2017
Nice screws fast delivery
July 2, 2013
I've used the square drive SB screws in both boats I've built and find them a great investment. They get pricier as time passes, but always a good investment.
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