No registration or passwords; no pop-up ads -- just aloha, fun, & answers.
(as an eBay Partner & Amazon Affiliate earns from qualifying purchases).
Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Advertise
 
Help
Wanted
Current
Q&A's
Site 🔍
Search
pub  Where the
world gathers for metal finishing
Q&As since 1989



-----

Derusting hot dip galvanized nuts




November 21, 2011

We have 6 MT of hot dip galvanized nuts M16 that have been heavily rusted inside the nut. Can you suggest a simple way to remove the rust. We have used a chemical coming from USA with very good results but the cost of the chemical is higher than the cost of the nuts.
Your advice will be highly appreciated.

58002-1 58002-2

Vladimiros Taliadoros
- Strovolos, Cyprus



You didn't say how much the de-rusting is costing, but I wonder if just re-galvanizing the nuts is an option?
It could be that there's no spin galvanizing on Cyprus?
Have they been overtapped for use with spin galvanized bolts perhaps? If that's the case, the theory is that the zinc on the outer thread of the bolt protects the exposed steel inside the nut. But it only does that while the nut is on the bolt.
If you're planning to use them on fully galvanized bolts, then just putting them on as they are might be an option.

geoff_crowley
Geoff Crowley
Crithwood Ltd.
Westfield, Scotland, UK
crithwood logo
November 22, 2011




(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"