Low profile knob for 1/4 inch nylon insert nut

A knob to fit around quarter inch nut.

I've lost original knob that came with a camping trailer side table - there was too much vibration and it unscrewed itself somewhere in the travels. The original was also too high and was getting in a way when storing that table.

This replacement is low profile with rounded corners to not to snag on things as much, and it is used with nylon nut (but a standard nut will fit it too).