Seat bases

Discussion in 'Boat Modification Journal' started by Blake Waterworth, Feb 3, 2009.

  1. Blake Waterworth

    Blake Waterworth New Member

    Messages:
    153
    State:
    Missouri
    Does anybody have any tricks to keep theseat bases tight on the deck of an aluminum boat? I used screws but they keep loosing up. Was wandering if they make something like a drywall anchor only heavier? Any ideas?:eek:oooh:
     
  2. SkipEye

    SkipEye Well-Known Member

    Messages:
    7,525
    State:
    Winfield, MO
    Name:
    Darryl
    I used 1/4-20 aluminum rivnuts in the floor of my boat, might have been 5/16-18 can't remember (I have both), but rivnuts are the ticket!:wink:

    That way you install with a machine thread instead of a sheet metal screw.

    Actually to be more specific: The seat bases are installed on stiffener plates with nylok nuts and bolts. The stiffener plate was installed to the floor with rivnuts. Solid as a rock!

    See pic:

    http://i177.photobucket.com/albums/w224/Darryl076/SeatPedestals008.jpg
     

  3. Blake Waterworth

    Blake Waterworth New Member

    Messages:
    153
    State:
    Missouri
    Thanks! Where do I find these Rivnuts?:confused2:
     
  4. BKS72

    BKS72 New Member

    Messages:
    3,361
    State:
    East of KC
    Blake, bring her over to the house and we'll throw and inch of weld on each side:wink:
     
  5. Grimpuppy

    Grimpuppy New Member

    Messages:
    3,556
    State:
    Concordia, KS
    Everything I mount on my boat is done with rivnuts also. You have to buy the gun to install them but it is money well spent. You will be amazed at how much you use them. I got mine from a local Fastenal store. If you buy from Fastenal online it cost way more than going into a store.
     
  6. cantstopgrandma

    cantstopgrandma New Member

    Messages:
    955
    State:
    MD
    Some auto parts stores carry rivnuts and the tools. They use them at work to attach the big mirrors to the doors of our 1-ton dump trucks.
     
  7. catfisherman369

    catfisherman369 Floyd

    Messages:
    4,944
    State:
    Nashville Il.
    I had an old jon that i used liquid nails on and then screwed down . Welding is the best though .

    On my boat now I put in a marine board floor covered in gray outdoor carpet and just bolted to the floor works great for me .
     
  8. altamahajon

    altamahajon New Member

    Messages:
    151
    State:
    Jesup, Georgia
    If it is up front and you can get a small piece of 2x2 or 2x4 under the aluminum deck and screw large wood or sheet metal screws or bolts and lock washers thru the seat bracket, deck and into the wood pulling it up tight. This will give you more grab room and spreading out the weight and stress distribution.

    This is how I did mine and can nearly swing on it..... does not move at all.

    T T
    -----l-------------l---------------------- plate
    ___l________l__________________deck
    l l
    -----l-------------l----------------
    wwwwwwwwwwwwwwww wood
    -----l-------------l---------------
    xlx xlx


    AJ
     
  9. joer

    joer New Member

    Messages:
    335
    State:
    columbiaMo
    Blake if you live near PM me and I'll loan u my riv nut tool.
     
  10. Blake Waterworth

    Blake Waterworth New Member

    Messages:
    153
    State:
    Missouri
    Hey thanks Joe but I think im going to go ahead and buy one they look pretty handy to have around. Thanks alot for the offer though!!