Crib hardware. Hi, I just purchased a crib second-hand and there is one piece missing. It appears

Question

Hi, I just purchased a crib second-hand and there is one piece missing. It appears to be some kind of s***w that the bolt locks into and holds the bottom rail of the non-drop-down side to the end of the crib. Without this I can't get the long bolt to attach tightly. Could I order this from you? Thanks