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Can you take the hardness out of bolt.
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PaKettle
Posted 9/19/2010 15:04 (#1365777 - in reply to #1365770)
Subject: Re: Can you take the hardness out of bolt.



Lenawee Co Michigan		That's correct. But with an object as small as 5/16 it's near impossible to cool it slowly.

Larger items are often heated to color and placed in a lime box overnight for slow cooling.

That bolt likely became work hardened before it broke.
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