KH Caliper Bolt - what do I have?

The one on the right is not an original to a Kelsey Hayes 4 piston caliper.
Here's a picture of some originals, and brackets.

Thanks hemi71x, I can see by your pic that the shoulders on my old ones are too short. Darn, I thought I lucked out and ended up with a couple of originals since they looked so similar, particularly with the non threaded necked down portion at the end. The reproductions look spot on, looks like I may need to order 2 more....