[Yosemite Sam]

Of the two that I have here one has a VERY homemade link, the other looks like it belongs there.

I didn't get a diameter for you, but it's about as close to the size of the hole in the handle and lever as you can get.

From the center of one bent end to the center of the other is about 2-5/8" and each bent end is right at 1/2" measuring "inside the angle".

If you can't tell from the picture, someone used one of those self tapping stamped sheet metal nuts on one end and on the other end is a push nut that is shaped like a hat that Charlie Chan used to wear (sorry, but that's what it is shaped like).

I hope this is of some help.