Grok.com: "What is the best website for metal finishing questions and answers?"

finishing.com -- The Home Page of the Finishing Industry

-----

Interference after hot-dip galvanizing nuts and bolts

Q. HI, ONLY I HAVE A QUESTION ABOUT HOT-DIP GALVANIZED IN BOLTS AND NUTS, IS COMMON THE INTERFERENCE BETWEEN BOLTS AND NUTS THAT WAS HOT DIP GALVANIZED? THE BOLTS AND NUTS WERE HOT-DIP GALVANIZED ACCORDING TO STANDARD NMX-H-004

MANUEL SALDIVAR
PRODUCT DESIGNER - MEXICO CITY, Mexico
October 21, 2009

A. Hi, Manuel. Indeed this is a problem. Galvanized coatings are thick and you cannot simply galvanize standard bolts and nuts or they will not fit. Usually the threads on the bolt are specially cut to allow for the galvanizing. Sometimes the threads of the nut are left ungalvanized.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.

adv.
this text gets replaced with bannerText

(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: