[Mgs] 80 MGB - Cross member to Body bolt

[Bob Howard]

   Further to the discussion of strength of stainless nuts,  from
Machinery Handbook no.26
   "Three grades of hex and square nuts designated grades 2, 5 and 8 are
specified by the SAE J995 standard covering nuts in the 1/4 to 1 1/2 inch
diameter range.   Grades 2,5 and 8 nuts correspond roughly to the SAE
specified bolts of the same grade."
"Grade 2 nuts are not required to be marked, however, all Grades 5 and 8
nuts must be marked in one of three ways: Grade 5 may be marked with a
dot on the face of the nut and a radial or circumferential mark at 120 
degrees counterclockwise from the dot on the face of the nut; or a notch
at each of the six corners of the nut.  Grade 8 nuts may be identified by
a dot on the face of the nut with a radial or circumferential mark at 60
degrees counterclockwise from the dot; or a dot at one corner of the nut
and a radial line clockwise from the nut, or two notches at each of the
six corners of the nut."
   I just went through a couple of boxes of SS nuts that I have in the
garage; all are marked grade 5. 
Bob



 
On Thu, 19 Jul 2007 08:17:57 -0400 Bob Howard <mgbob at juno.com> writes:
>  No particular death wish.  The ones I used were suggested by a 30 
> year assembly tech at Pratt & Whitney, where they know a thing or two 
> about metallurgy.
> Bob
>  
> On Tue, 17 Jul 2007 22:03:45 -0500 "WJHS1960" 
> <WJHS1960 at comcast.net>
> writes:
> > <<BTW,  if you get stainless locknuts and washers from
> > the hardware store, they polish up nicely.....>>
> > 
> > You must have a Death Wish, Bob.  Just what I want on any 
> automobile is Grade 2 fasteners.
> > 
> > N    O    T    !!!
> > 
> > Suicide comes to mind!!
> > 
> > ONLY Grade 5 fasteners are used on any/all LBCs!!!