Tag Archives: what is fastener galling

Q: I’ve heard of thread galling but am not exactly sure what it is. Can you explain?   A: Galling happens when a bolt is over-tightened and the threads seize together creating what we call a “cold weld”. The friction from fastening actually causes the threads to heat up and … Continue reading

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Q: Are galvanic corrosion and galling the same? A: Galvanic corrosion and galling are actually very different. One causes accelerated corrosion while the other cause the threads to seize. Galvanic corrosion is when two dissimilar metals are brought in contact with a solution or moisture – most commonly, salt water. … Continue reading

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