Get Your Upper A-Arm Bolts While They Got 'Em GM #461854

Very true. Know what you're doing if you sub a metric bolt for an SAE and vice-versa. For example, a 10.9 metric same relative size bolt in SAE Grade 8, the 10.9 is slightly less tensile strength. Not by a lot, however. They do a lot of KPa ratings with metric so you usually have to do a lot of conversion. OR.....you can do like me and just search and mostly find the right bolts via the GM part number. 🙂
I'm guilty of changing several of the 10.9 bolts for Grade 8 bolts on my frame but certain ones stayed metric either by they type of bolt GM used or it was easier to keep it metric cause of how it attaches.
 
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Anyone have the part number for the lower control arms bolts and nuts off hand?
 
Anyone have the part number for the lower control arms bolts and nuts off hand?
here, i did this post after getting my suspension done last summer, mechanic said all fit but were a little longer.
 
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Maybe a dumb question..but would it be worth it to get these as a kit and just send em out to chrome. Or these garbage?
 
Maybe a dumb question..but would it be worth it to get these as a kit and just send em out to chrome. Or these garbage?

I strongly suggest you look into what chrome plating does to the metallurgy of steel, a process called hydrogen embrittlement. It drastically weakens the strength of the metal, something you REALLY don’t want on load bearing suspension fasteners.

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Donovan beat me to it. I was just going to say, "Don't chrome those!" Degrease them and paint/powdercoat them the color you want if you like, but I concur, think twice about chroming them. You could bright zinc the bolts and clear over the zinc and that might add some shine and longevity to the zinc brightness. There's other options.

They say they're "plated" on the ad, but they're simply surface converted/coated (black oxide and zinc) which doesn't affect their strength.

In the name of safety, I'd try to get what you want, or close to it, without actually chrome plating them.
 
I strongly suggest you look into what chrome plating does to the metallurgy of steel, a process called hydrogen embrittlement. It drastically weakens the strength of the metal, something you REALLY don’t want on load bearing suspension fasteners.
I was debating about getting my frame hot dipped galvanized. There is a place about 30 minutes from me that does it(although I have not priced it yet). Looking up the process, they do an acid bath beforehand, so would it be a problem with hydrogen embrittlement with that? I mean I've never heard of a problem with it when you have a whole body dipped...
 
I was debating about getting my frame hot dipped galvanized. There is a place about 30 minutes from me that does it(although I have not priced it yet). Looking up the process, they do an acid bath beforehand, so would it be a problem with hydrogen embrittlement with that? I mean I've never heard of a problem with it when you have a whole body dipped...
If it's hot dipped, it's usually hot enough to keep out the hydrogen. You should be ok.
 
Great info fellas! Will NOT be chroming them. I'll get em some OEM and send off to powder.
 
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