67 crossmember to subframe mounting hardware

[big iron]

Have done a search, but the question about the description of the original hardware was never completely answered.
The picture of an original bolt can no longer be opened.
So, can someone with an original 67, with original 67 hardware, be so kind as to give us a description of the bolts, washers, lock washers and nuts? I would like to have a description of original 67 hardware because 68,69 hardware may have changed. If you have 68,69 original hardware please give description so others with those years may benefit.
Thanks,
Bob

[big iron]

With approx. 900,000 cross-member bolts used in 67 there must be someone with a picture of an original bolt.
Bob

[big iron]

Still need info

[JoeC]

I can get you some pictures
They use a bolt and a special nut that looks like a flat piece of steel with a tapped hole.

68 shoud be the same but 69 didn't use them

[big iron]

JoeC,
Thanks, a picture of the original hardware would be perfect.
I have been trying to find a set for some time now but I am not sure what I am looking for, and a picture would defiantly help me in that endeavor.
I am also trying on TC but have had little responce considering the amount of hardware that was produced.
The only thing I think is correct is that the bolt is a 3/8-16 x ?  9/16 AF hex flange bolt with an A - w/ three hash marks on the head. I have no idea what the washers, L washers (?) and nuts look like.
Bob

[JoeC]

here is a picture of the hardware on my 67 Muncie shifter to crossmember

[big iron]

JoeC,
What you have shown is the hardware to mount the support assembly to the cross member.
I am looking for the hardware that mounts the cross member to the sub frame.
Bob

[JoeC]

I thought you were asking about the special hardware for the shifter bracket to cross member install.

The 4 bolts used for cross member to frame were just standard nut/bolt hardware. I never heard of any problem with getting them.

[big iron]

Looking for original hardware with the correct head markings.
Repo hardware is not correct.
I had hoped to get a picture and description so I would know what to look for.
Normally I would just take a picture of what I need from a surviver but under the car is a different story.
Bob

[big iron]

Still looking for original hardware.
Believe bolts to be 3/8-16x11/4 or 11/2 long with A and 3 hash marks.
Any leads will be appreciated.
Bob

[Mike S]

Hi Bob,
   I removed one from my 67 LOS 4B survivor TH400 cross member which should use the same hardware (it was burried in thick grime)
It's a 9/16x16x1 RSC bolt. I attached a photo.
Bolt - phosphate
Washers and nut clearly zinc plated

Mike

[69Z28-RS]

"If you have 68,69 original hardware please give description so others with those years may benefit.
Thanks, Bob"

OK-for 1969:  from my original '69 Z28: 
Bolt:  3/8" thread, 1-1/4" long, 1/8" unthreaded shank under bolt head which has an 'A' centered with 6 has marks (grade 8?).
lock washer:  standard appearing 3/8" split lock washer
large thick washer:   1" dia, 1/8 thick 3/8 flat washer
nut:   I forgot to look at this, but think it's 5/8 or 11/16 std hex nut...

Gary / 69Z28-RS

[1968 Z28]

1968 original.....

     Bolt:  Flanged Head 3/8 - 16 X 1 1/8" ...head is 9/16" with a 3/4" flange.....has an "A" centered on bolt head and has three hash marks
     Washer:  standard 3/8" split lock washer
     Nut:  standard 3/8" hex nut.....9/16" wrench size.....5/16" height

[Mike S]

 Just to be clear, when you guys say 3/8-16 I assume you mean the shaft is 3/8" thick? I checked mine and verified I did need a 9/16th socket to remove my original bolt as show above.
I posted mine as 9/16-16. I'm not up on the correct syntax for bolt identifications.

Mike

[1968 Z28]

Mike....3/8" is indeed the diameter of the threaded part of the bolt.