galvanized bolts
galvanized bolts
(OP)
Any comments on the pros and cons of hot-dipped vs. mechanically galvanized bolts? The application is statically loaded A325 bolts in a sewage pump station. The bolts will be subjected to constant high humidity and possibly intermittent water contact.





RE: galvanized bolts
Rod
RE: galvanized bolts
RE: galvanized bolts
On a somewhat similar note, compare hot dipped to electric galvanized roofing nails,there is no comparison in my mind. I reshingled my roof awhile back and against my better judgement used electric galv nails. Went up in the attic a year or so after and you could see the rust starting whereas the old nails that were in the roof were, for the most part, fine. Just my 2 cents worth....Mike
RE: galvanized bolts
The class of threads allows for the tolerances for HDG, so this should not be a concern - plus zinc often reduces the friction and makes non-lubricated tightening more predictable.
Tools can damage the zinc - adding a paint or a product like Denso paste can make a big difference for little added cost.