Thread depth for Hot Dip Galv
Thread depth for Hot Dip Galv
(OP)
We may be threading A36 bar, 5/8", 3/4" and 1" diameter which will then be hot dip galvanized.
How much extra thread depth do I need for the galvanizing? We will be using a "Rigid 532" pipe threader with UNC dies.
Is there a standard for this?
Brad
How much extra thread depth do I need for the galvanizing? We will be using a "Rigid 532" pipe threader with UNC dies.
Is there a standard for this?
Brad





RE: Thread depth for Hot Dip Galv
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RE: Thread depth for Hot Dip Galv
RE: Thread depth for Hot Dip Galv
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Thread depth for Hot Dip Galv
RE: Thread depth for Hot Dip Galv
But you're not talking nuts, you're talking rod, which is playing the role of bolt.
The dimensional requirements of A 325 (assumed to fit A 563 nuts) ought to be relevant. There they say use standard Class 2A threads before galvanizing, and then give a table for how far beyond Class 2A your pitch and major diameter can get after galvanizing. Using that table does mean making sure you're using HDG nuts as well to match your HDG rod, not mechanically galvanized nuts.
Hg
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RE: Thread depth for Hot Dip Galv
For the others, I don't have copies of ASTM A563 nor B1.1 hence the posting. This is an unusual case for our company so there will be no added value in buying the relevant standards.
Brad
RE: Thread depth for Hot Dip Galv
How long are the finished rods? If possible, it is recommended that threaded items have excess zinc spun off as they come out of the zinc kettle. Some galvanizers are equipped to do this.
Spinning helps to provide a more uniform accumulation of zinc in/on the threads enabling easier nut installation, including those tapped over-size.
Yosh