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Re: Structural Nut Grades
- To: <seaint(--nospam--at)seaint.org>
- Subject: Re: Structural Nut Grades
- From: "vicpeng" <vicpeng(--nospam--at)telus.net>
- Date: Mon, 15 Nov 2004 16:40:12 -0800
I'll try to download those stds.
----- Original Message -----
Sent: Monday, November 15, 2004 4:15
Subject: Re: Structural Nut Grades
ASTM F1554, "Standard Specification for Anchor
Bolts, Steel, 36, 55, and 105 ksi Yield Strength" provides a table for the
applicable nut for each of the three grades of bolts. Typically this is
a certain grade A563 nut however you could use ASTM A194 nuts.
ASTM A563, "Standard Specification for
Carbon and Alloy Steel Nuts", has a nonmandatroy Appendix X1, "Intended
Application" which shows the applicable nut to go with a long list of
different bolt grades.
11/15/2004 03:39 PM
ignorance is showing here.
I have, in the past, assumed that when I specify a bolt, that the
associated nut will have the equivalent strength. Recently I was asked
to OK a mix & match scenario. We are using a 50ksi threaded rod with
a washer & nut for anchorage into concrete. I was asked if a grade 5
nut would suffice.
would normally take a grade 5 nut to have an equivalent strength for an A307
bolt, and a grade 8 nut for A325 & A490 bolts.
1) Is this correct?
2) Can I use a grade 5 (grade B to ASTM A563) as
a suitable connection to a 50ksi threaded tension rod? Should I spec the
3) Where can I reference the
mechanical properties for nuts?
Thor A. Tandy