I have a Pulaski canopy bed for which I am missing hardware for the wood side rails. I am having difficulty identifying one part and purchasing a replacement absent use of a machine shop. The key component is what appears to be a threaded clevis pin that slides into the post and allows the side rail bolt to be screwed in. It is 1/2" in diameter and 4" in length with two tapped holes which allow for adjustment between king or queen size mattresses. I would like to identify the part name and locate a replacement. Pulaski no longer carries the part nor do any of the local specialty hardware stores. I restored the bed but do not want to lose any integrity by altering its ability to retain the hidden hardware. Thank you!!