Hot dipped galvanised bolts? really?....
Hot dipped galvanised bolts? really?....
(OP)
One of the design engineers (the lead) in the office has made a change to a set of drawing notes to the tune of: BOLTS AND WASHERS TO BE ZINC NICKEL ELECTROPLATED and replaced this with HOT DIPPED GALVANISED...
Am I correct in saying that bolts are not actually hot dipped galvanised... as they would be covered in a thick layer of zinc and the nut would not fasten?
that’s why bolts that require a "galvanised" finish are electroplated.... i.e. a thin layer of zinc is bonded to the bolt surface.
Cheers,
The Draffy
Am I correct in saying that bolts are not actually hot dipped galvanised... as they would be covered in a thick layer of zinc and the nut would not fasten?
that’s why bolts that require a "galvanised" finish are electroplated.... i.e. a thin layer of zinc is bonded to the bolt surface.
Cheers,
The Draffy
TheDraffy





RE: Hot dipped galvanised bolts? really?....
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
All answers are personal opinions only and are in no way connected with any employer.
RE: Hot dipped galvanised bolts? really?....
Appreciated
C
TheDraffy
RE: Hot dipped galvanised bolts? really?....
http://www.modernsteel.com/Uploads/Issues/June_201...
http://www.galvanizeit.org/images/uploads/drGalv/O...
RE: Hot dipped galvanised bolts? really?....
Zinc plating is typically very thin and provides minimal corrosion protection.
RE: Hot dipped galvanised bolts? really?....
This Specification addresses many:
www.boltcouncil.org/files/2009RCSCSpecification.pd...
Avoiding hot-dip galvanized A-490 bolts is important.