Universal smartphone tripod mount

This is an adjustable cradle to attach a smartphone to a standard tripod. The thread needed to fit to my tripod was a 1/4-20 UNC which seems to be about the standard, at least on the cheaper end of tripods, professional might be different. Fortunately I had the correct sized nut knocking about in the shed, one of those that 'might come in handy one day'. It should adjust to accommodate most smartphones. The photos show a Nokia Lumia 630 which is quite small, and a Samsung Note 4 in a protective