Hello,I make and repair furniture.I would cut the part off where the cap go,s,and make or buy a dowel of the size you need for the cap, and drill both pieces and insert and glue a smaller dowel into both,clamp and let dry and drill out leaving a small amount.You need to use a slow curing glue, a boat builders 2 part glue,it will have formaldhide as a ingredent.It should hold if your carful,end grain to end grain is not usually advised.Sorry about my spelling.If you need more info,pm me.:tinysmile_classes_t