https://www.amazon.com/dp/B08PDMGH1C?... – Amazon Link

If you are building a new bed with a wood frame and want to be able to
disassemble it you need to build bed rails that have integral hooks that can
attach to the head and foot boards. Same thing if you are repairing a
damaged wood bed rails. The solution is Tech Team's # 00831 wood bed rail hook and pin set.If you are handy and have the right tools it is an easy job.