Bill, telling you the size and thread pitch of the threaded portion of those bolts will not help you. These are specialty bolts with a tapered shoulder that is important for proper positioning of the K member. The size on a V code car is the same as any other Mopar of that era. You need to shop for a set of good used or reproduction K MEMBER BOLTS. There is often a member or two with them here on the parts for sale pages, and failing that, on ebag or Amazon.

As a matter of fact, I am surprised that you did not yet get an offer to sell you some, based solely on your question.