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Thread: Screws for McKenzie River Drift Boat

  1. #1
    Join Date
    Dec 2022
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    Ohio
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    Default Screws for McKenzie River Drift Boat

    Hello,

    Building a 17ft drift boat from Don Hill plans. It calls for 3/4', 1", and 1.5" in screws. Most of them are going through 1/4" or 1/2'" Meranti Hydrotek. Should I use fully threaded screws or traditional wood screws with a partially smooth shank?

    And where to buy them online?

    Thanks!

    -Will-

  2. #2
    Join Date
    Sep 1999
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    Armada, MI, USA
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    616

    Default Re: Screws for McKenzie River Drift Boat

    I'd stick with traditional wood screws with a full-size shank.

  3. #3
    Join Date
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    Default Re: Screws for McKenzie River Drift Boat

    Don recommends square-drive SS screws. Those are readily available in fully-threaded straight-shank screws. That's what I would use.

  4. #4
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    Walney, near Cumbria UK
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    Default Re: Screws for McKenzie River Drift Boat

    Quote Originally Posted by TerryLL View Post
    Don recommends square-drive SS screws. Those are readily available in fully-threaded straight-shank screws. That's what I would use.
    Only if the ply is glued in place, and I would still be unhappy about the slack fit of the screw in the plywood allowing in damp.
    It really is quite difficult to build an ugly wooden boat.

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  5. #5
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    Default Re: Screws for McKenzie River Drift Boat

    Quote Originally Posted by Peerie Maa View Post
    Only if the ply is glued in place, and I would still be unhappy about the slack fit of the screw in the plywood allowing in damp.
    It's a plywood drift dory held together with 5200. Most of its life will be spent sitting on a trailer, and the rest of the time it'll be crashing down rivers bouncing off the rocks. Ring shank nails might be the best option.

  6. #6
    Join Date
    Apr 2015
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    St. Helens, Oregon
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    Default Re: Screws for McKenzie River Drift Boat

    You can get screws in pretty much any config from Jamestown Distributing. Here's a chart on screw sizes from an old "RUDDER" magazine...might help.
    Deck Screw Sizes from old mag.jpg

  7. #7
    Join Date
    Mar 2001
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    FL
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    Default Re: Screws for McKenzie River Drift Boat

    Quote Originally Posted by TerryLL View Post
    It's a plywood drift dory held together with 5200. Most of its life will be spent sitting on a trailer, and the rest of the time it'll be crashing down rivers bouncing off the rocks. Ring shank nails might be the best option.
    ++1

  8. #8
    Join Date
    Dec 2022
    Location
    Windsor Ontario canada
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    1

    Default Re: Screws for McKenzie River Drift Boat

    Hello

    I'm also building a Don Hill boat 16 (Standard). The plans seem to have lots of issues? As far as the screws. You should be using a countersink for pre-drilling all the holes? The screws are 18-8 #8 size screws. The countersink should therefore be a #8. This will give you a lead that matches the screw and full threaded shank screws will fill the hole tighter than ones that not fully threaded. The square (Robertson) head screws are just easier to drive. Basically these short screws are SS sheet metal screw. Fastenal, Richelieu, and I think Amazon will have them. How far along are you in the build?

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