Replacement Cook Box Nut for Summit 450 a poor fit

[Chris Allingham]

Those studs are part of the end cap. The nuts are self cutting nuts. The nuts you want a 7/16" head x 1/4" shank.

https://www.amazon.com/exec/obidos/ASIN/B0041C6LYW/tvwb-20

I just bought a box of these as replacements on my Summit 450 and I don't like the fit. It's sloppy, not precise like the original. You can see the difference in these photos.

 

[Bruce]

Chris. Those nuts are designed for the end caps that have the cast aluminum studs that they screw onto. The ones that fit the bolts with actual threads are a bit smaller. I think you might even be able to use a regular hex nut on them and I am pretty sure they are 1/4", If it was me, I would get some SS nuts and use them. Here is what I use: https://www.boltdepot.com/Product-Details.aspx?product=7403

And I replace those black bolts with these: https://www.boltdepot.com/Product-Details.aspx?product=10505

It gives the outside of the grill a tough look.

 

[Chris Allingham]

Yeah, I was thinking about using s/s nuts but decided the speed nuts or whatever these things are called would be more original. But at this juncture, I may end up with nuts. Many of the originals are rusting away.

I want to stick with the original bolts for an original look if I can.

 

[LMichaels]

I say if you can improve performance hell with original go with perfromance

 

[Bruce]

Chris: I am almost positive those flange nuts will fit the factory bolts and the wider base on them is probably a good idea with the lid to keep it from cracking the porcelain...otherwise you would use a washer. I am sure you can pick those nuts up at most hardware stores.

 

[Richard in NS]

I just bought a box of these as replacements on my Summit 450 and I don't like the fit. It's sloppy, not precise like the original. You can see the difference in these photos.

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Chris, I went to Fastenal and another local shop and was not able to get the exact fit for those nuts either. I ended up soaking them in Evaporust for a few days and wire brushing them by hand. I was pretty happy how they turned out.