Return to index: [Subject] [Thread] [Date] [Author]

RE: Galvanizing High Strength Bolts

[Subject Prev][Subject Next][Thread Prev][Thread Next]
AISC's LRFD Sec. Ed. Vol. II states "...ASTM A325 Type I high-strength bolts
and A449 boltsare permitted to be galvanized; A490 bolts are not permitted
to be galvanized."

This is on Page 8-18 of the LRFD manual.  It also describes mechanical vs.
hot-dip galvanizing in short, referring the reader to AISC (1993). ASTM B695
covers mechanical galvanizing and ASTM A153 covers hot-dip galvanizing..
So, it looks like its fine except for A490 bolts, just choose a galvanizing
method.  Hope this answers your question fully--


Paul J. Pilarski
HNTB Corporation
600 108th Avenue NE
Tel: (425) 450-2592
Suite 400
Fax: (425) 453-9179
Bellevue, WA 98004
E-MAIL: ppilarski(--nospam--at)

> -----Original Message-----
> From:	Paul Feather [SMTP:pfeather(--nospam--at)]
> Sent:	Wednesday, January 19, 2000 6:26 PM
> To:	SEAOC List
> Subject:	Galvanizing High Strength Bolts
> Is it possible to hot dip galvanize (hot dip) high strength bolts and
> threaded rod, or will the heat of the process destroy the tempered
> qualities of the material?
> All input is appreciated.
> Paul Feather
> San Diego, Ca