What type screw to use?

[brian_33]

I am replacing my pontoon furniture and wondering what is the best type of screw to use to secure the seats to the floor. They are plastic bases going onto a carpeted aluminum deck.

 

[alldodge]

I am replacing my pontoon furniture and wondering what is the best type of screw to use to secure the seats to the floor. They are plastic bases going onto a carpeted aluminum deck.

Stainless steel

 

[Tater72958]

Been as you are fastening them to an aluminum deck "I" would use stainless steel bolts with a fender washer on the bottom side of the deck. It will be more trouble to do but a screw wont hold much in aluminum.
But opinions are like aaa......... well you know......
But keep in mind im really bad at over doing things. I like strong

 

[Yacht Dr.]

My personal favorites would be alum pop reevits..alum screws..then Good quality stainless screws.

Got anything under the aluminum deck?..wood..plastic..Jimmy Hoffa ?

Got pics

 

[brian_33]

Thanks for the replies. There is nothing under the deck. I'd rather not have to get underneath with washers and nuts if screws will work. It looks like the original fasteners are a self tapping sheet metal screw and they have worked just fine. But I don't think they are stainless because many of the heads are half rusted away so I can't get a socket on them to remove. Any suggestions on the simplest way to remove those.
No pics at this time.
Thanks

 

[81 Checkmate]

Any suggestions on the simplest way to remove those.

Do you have a Dremel Tool? Just grind the heads off the rusted ones Then when you remove the seat it should have a little stud sticking out. Vise grip it or grind flush with deck.

 

[brian_33]

Thanks Checkmate. That sounds simple enough. I will give that a shot.

 

[Tater72958]

They also make a small bolt remover socket that you can chuck up in a drill. Irwin makes it.