After reworking the front end last year I go under the car and see rust starting to form on the exposed bolt threads. I could paint, but then removal could be difficult. Grease would just attract dirt and grime.

Any other ideas?

Plasticoat? It comes in a cylidrical can & can be brushed on. It's usually for dipping things like tool handles.
Paul

Nice thought. Had not crossed my mind. I think they still sell it at Lowes?

brush some antiseeze on it... may look ugly but will preserve it for decades if left untouched

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1986 GT Fiero Owner & Enthusiast
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If you're primarily concerned about function rather than cosmetics, ordinary anti-seize compound applied the the bolt before the nut is attached seems to work pretty well. The action of threading the nut will distribute the anti-seize thinly and uniformly around the threads of the bolt. The bonus is that you will actually be able to remove the bolt years later.

Edit: Great minds think alike. But some type faster than others.

[This message has been edited by Marvin McInnis (edited 07-16-2008).]

Anti-seize will wash off the bolt threads that are exposed on suspension and other under-car parts. Get some tar-based undercoating and just coat the threads. Should you ever need to remove the bolts just wash the undercoating off with mineral spirits and your threads will be like new.

JazzMan

With some bolts you can put oil on them and then slip a section of hose or plastic tubing over them.

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vacuum caps along with the anti-seize - or just paint them. the paint will also act as a thread lock. it will make them tough to remove later - but not nearly as tough if they rusted.

when i re-did my last chassis, i took advice from a local guy who rebuilds classics.

he uses liquid teflon, puts in some black (or whatever) dye, then dips his bolts in it..
bout the same "toughness" as paint to remove, but he says hes never had one rust on him.
it looked pretty good when i did mine, just that size can of teflon was a bit pricey, i dont member the exect price, just remember it shocked me a lilbit.
(i got a quart can of it)

They make rubber caps to cover threaded ends.
http://search.store.yahoo.c...188400710&query=caps

Coat them with anti-seize and cap them.

You could use a soft glue like Elmer's or rubber cement. That stuff comes off easy with a wire brush and it is waterproof.

quote Originally posted by hookdonspeed: when i re-did my last chassis, i took advice from a local guy who rebuilds classics. he uses liquid teflon, puts in some black (or whatever) dye, then dips his bolts in it.. bout the same "toughness" as paint to remove, but he says hes never had one rust on him. it looked pretty good when i did mine, just that size can of teflon was a bit pricey, i dont member the exect price, just remember it shocked me a lilbit. (i got a quart can of it)

That's interesting as I sand blasted many of my bolts and re-black oxided them. So you dip your whole bolt in? Head, shaft, threads and all? Got a link?

I always just use Rubberized Undercoating on them after installed. Unscrews back out just fine, wont wash off over the years in rain and snow.

http://www.amazon.com/Perma...Teflon/dp/B000HBM49W

i belive thats the same stuff i used.

Use loktite! when it's applied to exposed threads it will harden like it normally will do but will literally break off when you start to loosen the bolt since it's on the outside.
And you have a choice between 2 colors RED, GREEN, BLUE

Get some of the spray they use when they replace your battery...( for the connections..) protects from corrosion..and then you can use it on your electrical circuits as well....

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'86 Fastback SE 5 spd -'94 HD Electra Glide Cassic -'99 Chevy K-1500 Z-71

...metal etching paint???

...or replace with stainless steel bolts/nuts???

[This message has been edited by Mickey_Moose (edited 07-19-2008).]