Stainless fasteners

[stewardc]

Whenever I work on the truck, I like to replace the bolts I use with stainless bolts. Does this create a corrosion problem (dissimilar metals) if I were to change oil pan bolts, for instance??

[jimfoo]

Only if you have an aluminum oil pan.

[QuickTD]

No real corrosion problems that I can forsee. You should be aware that stainless bolts are not as strong as alloy steel bolts, particularly in fatigue strength. This is more of a concern on heavily stressed areas, such as in the suspension or engine mounts. I wouldn't worry much about pan bolts.

[stewardc]

Thanks, guys. The only bolts that will go stainless are small, visible ones. Any loadbearing ones will probably go titanium

[FineFrank]

Remember to use the right antiseize on them, too. SS bolts REALLY need it because they break a bit easier than carbon steel.

[stewardc]

Remember to use the right antiseize on them, too. SS bolts REALLY need it because they break a bit easier than carbon steel.

What is the best antiseize to use?

[Pat Dolan]

Stainless bolts in steel or cast iron do not need anti-seize compound.  However, stainless in stainless (i.e. nut-and-bolt joint) ABSOLUTELY REQUIRES anti seize compound.  There are usually three different ones:  high temp, low temp and stainless compatible.  Any supplier that can make those differentiations is selling you a good, commercial grade product.