mounting seats with nutserts

[escapade]

While poking around the shop during clean-up I noticed what were called nutserts, they are inserted into wood or metal and designed to give you a threaded hole they come in different sizes and are ribbed to hold tight into the wood.

My question is would this be useful for mounting my seats to my boat? I would also use it for other items that would be mounted to the deck as well, and this way they could be removable and the holes could be temp plugged with rubber plugs to keep water out.

Opinions?? or other options??

 

[Bob_VT]

Re: mounting seats with nutserts

Yes I have used them on cars and I called them rivnuts..... I have not heard of anyone using them on a deck or boat but I would think they have a 50/50 chance of working without damaging other things. I doubt I would use them for a seat pedestal..... I would use t nuts there.

Not a bad idea.

 

[escapade]

Re: mounting seats with nutserts

I'll try it out on strenght tests and see how it goes worse case I'll try the T-Nuts

 

[mars bar]

Re: mounting seats with nutserts

If there the ones with the four spikes , I've used them with great success. Use anti-seeze though for an outdoor application.

 

[47pilot]

Re: mounting seats with nutserts

I was originally going to use these, until I found out that I had an aluminum sheet under the plywood deck...

The threads are much bigger and more course, so you will get much more contact area with the wood, and bite as well. They're brass, and the inside bolt threads are a fine thread. If you use stainless bolts, I doubt corrosion will be an issue. I would use a waterproof adhesive on the threadserts as well, and blue locktite on the bolts.
Keep in mind, there is a difference between the ones made for wood, and the ones made for metal.

 

[drewpster]

Re: mounting seats with nutserts

My experience with nutserts involves having to cut them out when they spin and slip because they have corroded to the bolt I am trying to take out. The ones I am talking about are the same as have been mentioned in your thread. (brass with stainless) I do not recommend using them unless the seat mount has plenty of them around its perimeter and you are sure you will never have to take the bolts out. You are better off just using some plain old stainless lag screws in my opinion.

 

[fishrdan]

Re: mounting seats with nutserts

My experience with nutserts involves having to cut them out when they spin and slip because they have corroded to the bolt I am trying to take out.

Same here, I worked in a wood shop going through college and remember removing a bunch of them that were seized to a SS screw. We would epoxy in the new ones though.... Problem I see with the nutserts is that there is nothing backing them up on the bottom of the ply and they could tear through the plywood, you are relying on the strength of the plywood's end grain that could pull through as easily as a screw..

I think T-nuts would be the best solution if you don't have backing plates below deck. SS T-nuts are available at Jamestown Distributors.

 

[escapade]

Re: mounting seats with nutserts

I did a quick search and found lots of different T-bolts can someone post a picture of the ones recommended for the seat mounts

 

[lowkee]

Re: mounting seats with nutserts

I am planning on using these little guys set in a 3/4" ply base glassed above the 1/2" ply deck:

If they ever freeze up, I can always cut the ply base away and remount. Using these I don't have to cut holes through the deck, just through the base. No risk of water intrusion.

 

[drewpster]

Re: mounting seats with nutserts

I am planning on using these little guys set in a 3/4" ply base glassed above the 1/2" ply deck:

Ever see a stainless steel version of these?

 

[lowkee]

Re: mounting seats with nutserts

Ever see a stainless steel version of these?

Sure have: http://www.mcfeelys.com/product/SSN-3118/516-18-Stainless-Steel-Tee-Nuts

 

[109jb]

Re: mounting seats with nutserts

Ever see a stainless steel version of these?

Yep, but I didn't get them locally. I had to order them. If I remember right I got them from McMaster Carr. I did a quick internet search and came up with this:
http://www.boltdepot.com/product.aspx?cc=7&cs=97&cm=6

 

[109jb]

Re: mounting seats with nutserts

Here is the McMaster Carr link:

http://www.mcmaster.com/#stainless-steel-tee-nuts/=2sa3md