But / Bolt material

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But / Bolt material

Postby rsprosser1 » Mon Feb 19, 2018 10:11 am


I was going to replace a few nuts, bolts, washers etc, that are in tough shape, in this instance components of a final drive reassembly...I went to Napa and found what I needed and was about to buy but clerk let me know that these items were not stainless...they were a standard coated #5 material. Turns out Napa doesn’t sell stainless so I put back and figured I’d check with the forum first. Guess I was thinking that you would want all of your fastners, etc. to be stainless given outdoor nature of use....but maybe it’s not necessary? What do others use? Thanks

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Re: But / Bolt material

Postby ajhbike » Mon Feb 19, 2018 10:46 am

I use grade 5 or 8 fasteners from TSC for everything.

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Re: But / Bolt material

Postby Eugene » Mon Feb 19, 2018 10:50 am

Local hardware store stocks stainless steel in the desired grades.

I have found bolts at the implement dealerships cheaper than NAPA.
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Re: But / Bolt material

Postby Frozenstate » Mon Feb 19, 2018 11:15 am

I believe stainless bolts are only a little harder than grade 2 steel bolts. Probably better of with steel bolts of higher grade and some never sieze. It will cost less and will never be a problem if the tractor is kept indoors and not used in a corrosive environment.

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Re: But / Bolt material

Postby Clip » Mon Feb 19, 2018 11:33 am

I've had more trouble with stainless than carbon steel. They're a lot less tolerant of overtorquing and they really like to gall if you assemble stainless-stainless without a coating of anti-seize. Carbon fasteners have lasted almost 70 years in my case, and I've been replacing them like-for-like when needed.

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Re: But / Bolt material

Postby Willy » Mon Feb 19, 2018 11:34 am

There are high grade stainless, but they're pricey. I use hardware store grade 5 or 8 and my local store sells them by the pound. As for corrosion, rattle can Farmall Red works great (I caught almost a dozen at an outlet store for $2 a can)
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Re: But / Bolt material

Postby rsprosser1 » Tue Feb 20, 2018 5:47 pm


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Re: But / Bolt material

Postby Lt.Mike » Tue Feb 20, 2018 7:32 pm

For fasteners that you don’t want to rust - stainless. For mechanical applications that are torqued or under stress - grade 5 or 8.
For through bolting something which has a nut securing it I often go with stainless with a nylon stop nut. That won’t loosen. If it breaks removing it no biggie as there are no threads left buried in a part. If a bolt threads into a block or part - grade 5 or 8.
Always use never seize and never reuse a bolt that shows signs of stretching or gives you any doubt.
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