Hey, the 1250's seemed ok, but i would rather have had the steel core ones.
The heater tube only has one place for the stud. I saw some pictures of other installs and the other stud went in the rear driver side hole. What it's for Im not sure yet.
That being said, the LRS replacement kit only comes with one stud, so I am not sure.
Any number of reasons I suppose...might've been replaced in the past with another bolt that just happens to be the same size. If memory serves, there are a couple timing cover bolts that are the same length and have a studded end above the hex head.