Seat Restoration

[duhmey]

Can anyone tell me what this mounting hardware is called?

Unfortunately I did not think to get a picture of them as installed but the seats have a threaded insert built into the plywood seat bottom and the pictured hardware screws into the seat and then passes through the fiberglass the cushion sits on, then gets a nut and washer to secure them there. This particular set-up seems to be a 516 diameter hardware.

A general search of the interwebs without the proper keywords has yielded me nothing. They appear to be automotive studs with two different thread types (one fine and one coarse) and I have no idea if the flared part comes that way as sold or if they are sold in two separate pieces.

Thank You in advance

 

[nola mike]

I think you're looking for these...
Also used in furniture repair

Stainless Steel T-Nut

Looking for marine grade fasteners? These t-nuts are designed to survive the harshest marine environments.

www.boatoutfitters.com

 

[Chris1956]

Yes, what you have is what remains of t-nuts and their matching bolts.

They usually have them in various sizes, threads and zinc steel and stainless.

 

[Scott Danforth]

usually when the T-nuts rust, the rest of the substrate and foam need to be replaced.

McMaster-Carr

McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.

www.mcmaster.com

 

[duhmey]

Thanks y'all! That is exactly the info that I needed