Awhile back a friend gave me several boxes of T Parts. The bottom of one of the boxes had a lot of different bolts and nuts. I recognized all the Bolts except the ones in the picture below. When I first saw them I thought they were the 5/16" bolts that tie the rear axle housings together. But after I got a closer look I saw that the heads were round with TWO FLATS. The flats take a 7/16" inch wrench. The shaft is 1&1/8 long by 5/16" and fine threads. Anybody got any ides of what these bolts are used for?
I would say these are for show and can be used just like a regular hex head bolt, but unlike standard hex head bolts, which allow for 4 different angles for the wrench to be positioned, these must be used in easy to reach locations as there is only one wrench angle to utilize.
New style of adjustable lifter with one missing? (place smiley face here) Jim
You're a lucky guy. Now you can get all kinds of projects done as you now have enough "round tuits".
Would they be the correct size to hold the rear end halves together?
Well dummy me...I re-read and see you all ready mentioned that! Back to the coffee pot for seconds.
I was thinking of rod bolts too, but they're not drilled for cotter pins.
Unfinished hex head bolts. Simple as that. Probably got thrown in the finished pile by mistake. MHO
Dennis Seth: I don't think the threads are long enough. The only go back 1/2". They are certainly nice bolts they are all mint and have a thick head like so many of the early car bolts had. I certainly will keep them and use them some where.
Rod bolts. They use the self-locking nuts, no cotter pins.
Fred Miller & Ed in California, Rod bolts are 3/8" these unknowns are 5/16"
Wouldn't be T rod bolts anyway, the head would more than likely hit the cam shaft.
I have seen those somewhere, but can't place it--maybe a Model A part (differential ring gear??--but I think those are drilled)
David Dewey: If they are model A bolts then I am lost. There were several boxes and every other thing was T, including special T bolts.
It's just a guess by me. What haunts me is that I've seen these SOMEWHERE. . . . .
As I said, I think the A ones are drilled for safety wire, so these aren't likely the A ones.
The design indicates they go into a hole with a ledge close to it (that the flat part fits against).
Are these maybe Studebaker vibration damper bolts? They sure look familiar. D.S. in Bellingham, Wa