"Jim Thompson" wrote in message news: snipped-for-privacy@4ax.com...
Hi Jim, you have two choices here, the "R" clip as you have drawn or a button clip might be a better option. See the following link for a PDF displaying both types of clip...
The button clip is designed to fit inside the inner pipe with the button protruding out of a hole. When the outer tube is slid over the inner tuber the button is depressed by finger to allow the tubes to couple together with the button then engaging with a hole in the outer tube to secure both tubes together. You can detent the button far enough by finger to get the outer tube off the inner tube. The button clip always stays inside the inner tube and engaged with the hole and therefore shouldn't fall out or get lost.