Working with chromed bolts

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I've also heard, along that same line, that putting a piece of plastic, such as part of a zip lock bag, on a newly painted bolt head will save it from damage.
 
I've also heard, along that same line, that putting a piece of plastic, such as part of a zip lock bag, on a newly painted bolt head will save it from damage.
  
Just a note of caution here....before choosing chromed hardware for your rod, you should read up on hydrogen embrittlement. When using an electrolytic plating process, free hydrogen atoms are introduced into the parent metal. If the part is not baked shortly after being plated, these hydrogen atoms can and will destroy the part. I have read of metal shattering just sitting there on the bench. If you absolutely know who chromed the part and you absolutely know that the part was baked post-plating to remove the free hydrogen atoms from the parent metal, then you should be ok. If you don't absolutely know where the part came from, be very cautious about using it in a stressed atmosphere such as a fastener. Chroming without baking won't make a lot of difference on an oil pan, but it could mean the difference between life and death on a suspension fastener. Just so you know.   
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Just a note of caution here....before choosing chromed hardware for your rod, you should read up on hydrogen embrittlement. When using an electrolytic plating process, free hydrogen atoms are introduced into the parent metal. If the part is not baked shortly after being plated, these hydrogen atoms can and will destroy the part. I have read of metal shattering just sitting there on the bench. If you absolutely know who chromed the part and you absolutely know that the part was baked post-plating to remove the free hydrogen atoms from the parent metal, then you should be ok. If you don't absolutely know where the part came from, be very cautious about using it in a stressed atmosphere such as suspension. Chroming without baking won't make a lot of difference on an oil pan, but it could mean the difference between life and death on a suspension fastener. Just so you know.   
  
 
[[Category:Fasteners]]
 
[[Category:Fasteners]]

Revision as of 14:01, 29 April 2013

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