Bolts / Where did they come from?

[Richard G.]

I have had some of my 1963 Corvette apart for years!
I did keep them all, bolts that is.
Mostly I put them back in the holes they came out of and there they stayed.
However some didn't make it past the plastic bag.

Now I am wondering where did they come from?
These may be the clutch fan? They are the right size and quantity and possibly the correct grade for the clutch.
They are 5/16 NF and 3/4" long.
Pictured below;


I have nine of these:


5/16 NC 3/4 Long
The have both flat and lock washer that are not captive. All appear to be zinc plated.
Because of the fender washer (extra large outside diameter) I suspect they are for the core support?
The washer is bored for 5/16 but has the outside diameter the same as a 3/8 flat washer.

I have two of these 3/8 X 7/8 NC. Black with captive locking washer incorporated into the bolt body.

No idea what they might be for....

I am also wondering what is the finish for the straps that retain the Expansion Tank to the body on a 63?


Thanks in advance for any possible help.
Rick

[Ed S.]

Re: Bolts / Where did they come from?

According to the 63 -64 judging guide, the straps that secure the gas tank are semi-gloss black; fasteners that secure the straps to the cross member (support bracket) should be cad or zinc - with the exception of the small black removable bracket that the fasteners go through - they should be semi-gloss black.

[Richard G.]

Re: Bolts / Where did they come from?

Ed
Thanks for the reply. However I was attempting to reference the small straps that retain the expansion tank to the wheel well area under the hood.
Rick

[Timothy B.]

Re: Bolts / Where did they come from?

Richard,

Are you certain the bolts in pic 1 are 5/16, the fan clutch to water pump is a grade 8 bolt but I think 1/4" size.

The second pic could be fan shroud to core support.

The last pic looks like front stabilizer bracket to frame and/or front lower control arm bumper attaching. they could also be battery bracket to frame and not have the larger flat washers still attached. I can't remember if they are captive or a separate part, check your AIM.

[Edward J.]

Re: Bolts / Where did they come from?

Rich, I agree with Tim on the first set of bolts 5/16 fine, pic 2 is either exhaust hangers or radiator support(6) and radiator top mount bolts(3)? 3rd pic, maybe lower transmission mount? just a guess.