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Jamestown Distributors(800) 497-0010
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#10 Silicon Bronze Frearson Flat Head wood screws appear similar to the Phillips head but the Frearson has a more pointed V shape. The Frearson tool recess is a perfect cross which minimizes cam out, unlike the Phillips head, which is designed to cam out.
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.
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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 fastener lubricant to avoid breakage.
MET / STD:
Hello, I am thinking of purchasing this screw in a #8 or a #10. I'm trying to screw HDPE plastic panels together. I'll be screwing into the side of the plastic panels such that the width of the surface will be 0.5 inches. I'm wondering if the #10 will be too wide. I'm also wondering how much stronger it will be than the #8. I need these screws to be rather strong because HDPE is very heavy. Oh yeah, I also need to make sure they are 100% silicon bronze. Thanks in advance :D
The #10 being larger will be stronger than the #8 screws. The head diameter is .385" on the #10 and .332 on the #8. They are all silicon bronze.
JD Tech Team
need box slot do you have ?
yes...look under "bronze screw flat head square drive"
thanks need to know how to order box slot not Phillips or standerd
Not sure why Jamestown had to ask me (a customer). Look under Fasteners, Screws, Silicon Bronze, Flathead, Square-drive.They list several sizes (6, 8 , 10, 12, 14) and multiple lengths.Good luck.
where can I get a straight thread root dia combined drill/ shank dia. /100 degree counter sink/ Head dia. + counter bore tool to comply with the design of the Frearson flat head silicon bronze screws?
I've used a lot of #10 silicon bronze Frearson drive wood screws from JD with Fuller and Snappy combination countersink collar/bit with no problems. I think these screws have the Unified Standard 82 degree angle for the cone shaped bevel under the flat head...but JD's supplier should be able to answer that.
I use the #10 Fuller bit with the tapered drill bit. They are available individually or in sets at Jamestown Distributors. If you want to purchase a single bit, select the 13/64 tapered drill with the #10 Counterbore. Be sure to use the Fuller plug cutters if you want a good fit with your plugs if you are counter boring and plugging. I use the Fuller bits and plug cutters on all my skiff building and the are of great quality. All available from Jamestown.
I don't know .
I need to buy less than a box. How can I do that.?
Pretty tough to do in most cases! If you live in an area where wooden boats are made, local marine retailers may carry them "open bin." For example, you can usually find them in Seattle, and some retailers would ship them to you.
PHILIP G RASMUSSEN
Theese are okay but soft metal
There is night and day difference between these and the ones made in USA. But the american ones are cost prohibitave. About double. These are very soft bronze and easily stripped. But with these one can afford to strip-lose some and use another(s).
Just as we ordered
On time and accurate. Already installed a bunch of them
Fastening oarlock sockets on to the gunwale.The Fearson screws have the same problems of standard Phillips, I saw no improvement. The bit still want to turn out of the screws. Quality of the screws is fine.
South Hero, VT
Plastic versus Paper
Working on restoring a 1970 58 ft. Trumpy and needed an assortment of various sizes of silicon bronze screws. The screws are great however the packaging is disappointing! JD used to send all silicon bronze screws in cardboard boxes marked as to type and size. Now they are shipping them in plastic bags. This is not nearly as convenient for storage of the screws! So, now we have more plastic bags in the world and poorer method of storage. The only winner here might be JD as I'm sure their cost is less for plastic bags vs. cardboard boxes.
great screws, but i had to order some bits to drive them, didn't find any locally
Exactly the product I hoped for
I'm using these screws in my first venture into boat building. The delivery was prompt and the item is perfect.
Update to original review...
Since I can't see a way to edit the original review, I'm adding a second review as an update. I've found a way to make use of the screws. First I should say I am (so far) driving these screws in places where I've already epoxied the joint and it has set while clamped. The wood is white oak and it's very dry. I say all that to say that there is zero movement in the joint and that the screw can't tighten it and can't sink into the wood beyond where I've drilled the countersink - so there's no good reason to crank down hard on the screws. I'm just putting them in as a secondary fastener.So here's what I did:1) Drilled the pilot hole slightly larger.2) Drilled the shank hole slightly larger.3) Lubed the threads with soap.4) Drive the screw with a brace & bit - stopping when the head hits bottom of the countersink.This isn't as satisfying as feeling like I've really snugged it down, but it's better than nothing.I would recommend - with reservations.
We ordered these screws for use on an 1880s cypress rowboat that we are restoring for the Beauvoir Museum. Jamestown Distributors' Tech Help personnel have been great with advice for every step of the project, especially the caulking of the seams
What can I say, they are screws!
These are Frearson head, not Phillps. Suggest you order the correct driver if you don't have one.
Corrosion on delivered screws.
I ordered several different sizes and types of bronze screws at the same time. One box, out of eight, contained screws that apparently had been subjected to salt water or something that caused corrosion of the screwheads and shafts. The corrosion was easily removed with a wire brush but I suspect these screws were exposed to salt water at some point prior to shipment.