Thanks - Patrick L. And Synchro909. I've gat a set that are supposed to come from the same car, but I don't know that for sure. This puts a little more comfortable in using them.
Could you use a short piece of conduit or pipe with an inside diameter just big enuf to fit over the studs and the bolts through the plate? Wouldn't it keep the bolts over the studs so they wouldn't slip off?