hi, can anybody tell me where I might find a list of gm bolts with correct head marking for a 69 302, from top to bottom. thanks
There is no such list nor will there ever be.
Bolts were commodities with multiple suppliers.
As Kurt stated, there were multiple suppliers even for the same hardware style, so the head markings can and do vary. But, if you want to see the many bolt types and markings, this (long) read is a good starting point from a past discussion. As it gets further into the discussion you will see charts created with the various markings:
http://www.camaros.org/forum/index.php?topic=9074.0
Mike
I put this list together showing gm part numbers, configuration and amk part number. Your best bet is purchase amk kits which are excellent overall and when ordering ask to send their catalog with order. A must have imo.
Find list here,
https://www.camaros.net/forums/34-restoration-corner/321378-original-hardware-see-post-2-5-a.html
Quote from: KurtS on February 03, 2020, 10:14:01 PM
There is no such list nor will there ever be.
Bolts were commodities with multiple suppliers.
Hang on for a minute on this - there was a very complete compilation years ago by the USCC on bolt markings, lengths and general specs. I'm sure I still have it secreted around here somewhere; anyone else have a handy copy while I look ?
When I disassembled my 302 back in the mid '70's, I measured and noted head markings on all of the engine fasteners I took apart - I'll try and dredge that up too. Might at least give us a starting point for an open comparison and discussion -
Regards,
Steve
Steve something like that would be beneficial for guys that have cars built around yours. I have been helping Joe (X66) with different details on his car since it is built very close to my unrestored (08C). Sure there could be variations with what bolts were in the supply bins but perhaps more accurate for that time frame than guessing.
The notes I made (and drawings of the bolt head markings) and the USCC list are buried in the archives here somewhere - I'll find them this weekend and post what I have. I never throw anything away - that's why I never get any projects finished (I can't walk through the garage, or find my filing cabinet - too much stuff !).
One thing about the USCC list I do remember - it listed variations and multiple suppliers on the same bolts, which helps identify the "field" of proper or acceptable parts. I think it will help -
Regards,
Steve
FWIW....here's. an. example of different bolt head markings on the same car. low mile original two piece rotor bolts. One head marking on the driver side, different head marking on the passenger side.