Deck Mounting a Seat

What type insert would you use to mount a a cooler seat that is fastened to the deck?

 

If the deck is solid fiberglass there are several types of available Stainless inserts. However, if there is a core inserts are almost impossible to seal.

 

Wood deck? If it is, let me know as I have an good approach for you that does not require drilling holes in the deck. I just don't want to waste a lot of time writing until I know what you're dealing with.

Regards,

MIA

 

Its a fiberglass deck with a wood core...about 3/4 inch...

 

Are you using an insert because there is no access to put washers and nuts from under?

 

That is correct....

 

Have you considered cutting an access hole that will be covered by the seat?

 

Use nutserts and machine screws. Conversely, the fasteners can be "bonded" in epoxy. You can also cast studs into the sole (see below)

 

My idea is along the idea that PAR gave you but a little different.

When I mounted a couple of pedestal seats on the flybridge I didn't want any holes in the cabin top.

I fabricated wooden plates, determined where I needed mounting holes for the pedestals and then used T-nuts that I installed on the bottom of the plates. The barrel of the t-nut goes up into the plate and you secure your seat with a machine screw of the appropriate size.

Once you've got your plate made, just apply small pieces of packing tape to the underside of the plate where the t-nuts are (to keep epoxy out of the threads) and glue the plate down with thickened epoxy. Fare up the edges, paint and you're done.

This method gives you a solid mount and NO HOLES to worry about. Oh, stainless steel nuts and fasteners of course.

MIA

 

This is a small boat(17 ft)....and I want to drill a hole in the deck and use some type of expansion fastener..I have seen some regular steel types ,but nothing in in stainless....I need help in finding this solution..:?:

 

NutSerts are the choice for this.



They come in many sizes and configurations. For this application get the closed end versions, so moisture can't get under them. Grainger, FastenAl and Hanson Rivet are the usual sources.

 

Thanks Par....I believe it will work..