Carrier Bolt?

[Jordan Baker]

That might be the bolt that plugs the horn conduit hole. Once the carriers had horns deleated some needed the hole pluged. A rather large bolt was used. It would be in the correct area for having been removed at some point.

[Lynn Eades]

Unless it is as Jordan has suggested, I don't think it is carrier at all.
Is it BSF ?
It looks like UNF Is there anything on the head?

To add to Bruce's suggestion, The Australians put a small shoulder on those cam plate screws (UNF), but I haven't seen them in a Canadian carrier. (not that I know about, or that we ever received any late model Canadian carriers over here)

[rob love]

I asked the same question about the threads. That would determine if it is from the engine/xmsn or from the hull. I am still waiting for an answer. I also asked about a head-shot. Many specialized carrier bolts would have the CTL number on the head.

Since it is painted on the head, but not on the shank, one had to assume it was bolted in place somewhere on the vehicle when painted and has since come loose.

[Lynn Eades]

It is too short for the cam plate.

[kevin powles]

It's a fitted shoulder bolt, so had something pivot/rotate around the plain part when fitted, most likely into a blind hole due to the length of the thread. Don't forget someone might of made it to replace an original they didn't have so might not look carrier. Have a good check of the camplate.

[rob love]

WHen I hear from him again, hopefully some more information will be forthcoming, such as size and thread pitch. I have a few more photos of it, and none of them really give an idea of scale.

I was thinking of something around the distributor, such as the bolt that the timing indicator slides on. I can't help thinking I have seen the bolt, and who knows, it may have rattled off an accessory like the Bren tripod or the pogo stick.

[Lynn Eades]

It's not from a pogo stick, Rob.