Help me ID the bolts

[Keith L.]

I am refinishing my bolts for my 70 and somehow lost the tag out of this bag.
1/2" X 1 1/2" long. All I know is somewhere on the frame.

[Grant W.]

Re: Help me ID the bolts

Bolts for the long front brackets that bolts to the front side of your frame or front bumper bolts.
I think it is for the front bumper stuff and the lower X member where it bolts to the frame horns. I remember the round flat washers were used in the front bumper assembly.
Hope this helps.
Grant

[Bill L.]

Re: Help me ID the bolts

Hi Keith,

There are four so I am thinking they are for the bumperettes. Definitely the right markings and definitely bumper related with those thin flat washers.

Bill

[Keith L.]

Re: Help me ID the bolts

Thanks guys. These are 1/2" bolts. The 9419075 and 9419077 are 7/16" X 1 1/4". The 1/2" ones may go in the front frame extension or the long bumper brace to frame. AIM pg 14 A2, items no. 9 or 12

[Alan S.]

Re: Help me ID the bolts

Hi Keith,
Here's the note from the extension fastener bag from my 71.
Notice the differences in length.
L288 is UPC 14, Sheet A2, in the 71 AIM
Regards,
Alan

[Chuck S.]

Re: Help me ID the bolts

Keith, in black phosphate, the only 1/2NC X 1 1/2" bolts I show are, "Front bumper outer brace attaching (+ frame extension)" (14A2, 9) and "Rear bumper brace attaching" (14B1, 10). There are four bolts in each application.

The rear bumper bolts also show a special washer and hex nut being used...the special washer description in my notes could mean anything from extra thick to toothed grip washer.

Yours are probably the front bumper outer brace bolts since you don't mention a hex nut. The front bumper bolts use ****. Edit: Notes in my AIM (14A2) indicate some inconsistency in my hardware description...Item 8 "lock washer" appears to a special toothed grip washer; Item 11 is shown as a "plain washer". The washer you're showing could be described as a plain washer, but it appears it's not the usual standard plain washer.

[Keith L.]

Re: Help me ID the bolts

I have come to the conclusion that these are indeed the 4 for item 9 that use the weld nut on the frame. AIM shows one more of the same and item 12 (1 per side) which Alans note showes to be 1" long. These two use nuts. I don't know why these two are not the same in the AIM. Alans note showes three different lengths. 70 AIM showes 3 -1 1/2" and 1- 1"? per side.
I need to look for the other four bolts. I baged and taged everything but I am doing the bolts at work and the car is in another location.
Alan your note shows nuts on all four. I assume your note is for one side. But two use weld nuts on frame. Or maybe your note is for just the four on both sides that use nuts.

[Keith L.]

Re: Help me ID the bolts

Alan, on your note what does IRT Hole L288 mean?

[Chuck S.]

Re: Help me ID the bolts

The AIM 14A2 is confusing in that it only identifies three bolts for four holes, but there should be two of each on each side.

My AIM notes indicate Item 9 is 1 1/2" long, and Item 12 is 1" long. I believe your conclusion is correct: the longer Item 9 is used in the frame weld nuts because they receive the thick toothed grip washer and require additional length. I believe the shorter Item 12 should get the hex nuts, and is used in the front and rear holes of the frame extension, in spite of what the AIM appears to show.

Edit: You'll probably be able to confirm the location of the toothed washers by the "dotted circle" imprint the washers leave on the bumper brace assembly.

[Keith L.]

Re: Help me ID the bolts

The 9101 bolt used in three of the four positions on the front is the same bolt used in all four positions on the rear. On the rear it used the toothed washers 1362249 on both sides of the frame rail. The AIM does not show this washer on the front. It shows 103329 lock washer on all four bolts per side. But I will check the brackets and frame for the tooth marks which were still visible on the rear brackets after glass beading and paint.

[Keith L.]

Re: Help me ID the bolts

I found this pic. the long bracket is already off to lift body. Looks like the back bolt is longer??

[Grant W.]

Re: Help me ID the bolts

I have come to the conclusion that these are indeed the 4 for item 9 that use the weld nut on the frame. AIM shows one more of the same and item 12 (1 per side) which Alans note showes to be 1" long. These two use nuts. I don't know why these two are not the same in the AIM. Alans note showes three different lengths. 70 AIM showes 3 -1 1/2" and 1- 1"? per side.
I need to look for the other four bolts. I baged and taged everything but I am doing the bolts at work and the car is in another location.
Alan your note shows nuts on all four. I assume your note is for one side. But two use weld nuts on frame. Or maybe your note is for just the four on both sides that use nuts.

Hi Keith
So we can assume the bolts are for the left and right front bumper brace brackets. The 1-1? that you are referring is probably the bolt that hides behind the bumper brace when attached to the frame. The 1 inch bolt attaches to the lower front bumper horn. Also this 1 inch bolt has 1/2 the head thickness as your A bolts so the bumper brace will fit over it.

Hope this helps.
Grant

[Chuck S.]

Re: Help me ID the bolts

I found this pic. the long bracket is already off to lift body. Looks like the back bolt is longer??

That IS what the AIM shows too (Item 9), but it's confusing because 14A2 doesn't show what bolt goes in the rear frame nut hole...only three bolts are illustrated. Logically, the two long bolts with the thick washers should go in the frame nut holes, and the short bolts (Item 12) would go in the front and rear holes, but that's not what your picture shows. Check out the marks on your bumper brace. I DO know that there are two long bolts and two short bolts to each side.

If the bumper brace has been removed, did you put the long bolt back in the rear hole after removing the brace?...the rear three bolts (in whatever combination) attach the brace to the frame.

Wow...Is that a big fat fillet weld between the frame and the extension horn?

[Tom R.]

Re: Help me ID the bolts

Keith,

Coincidentally, I'm working in the same area this weekend and found my identical photo of the front frame extension. Mine is of the left side but looks as if you took it. All four of my original bolts are 1/2" x 1" - your rear bolt is longer, mine is not. The other four bolts in your picture 1/2" x 1 1/2" definitely go into the welded nuts and attach the bumper brace.

[Keith L.]

Re: Help me ID the bolts

Chuck, my 70 AIM clearly identifies all four bolts. It shows #9 the 1 1/2" bolt in both weld nuts and the rear hole with nut. And #12 1"? in the front hole with nut. That would match what my pic shows.
I doubt this bracket has ever been off the car although I can't prove it. And that is not a weld just the front edge of the frame.
My 72 AIM does not identify the rear bolt for the weld nut. but the rear one with nut is the 1 1/2" one like my pic shows.
Tom, What year and build date has the 1" bolts. My 70 is Jan 22 build. I have my buddys late 69 in my building and I need to look see what it has.