For many years, I’ve maintained a small stock of screws. They come in an array of shapes – countersunk, cheese-head, round-head, the oh-so-Canadian fillister-head, and hex. I never stocked the hex-headed ones because I didn’t have the appropriate tools to turn them.
The trouble with most of these screws is that they have a simple slot for a flat screwdriver. There are reasons why we have invented the Robertson and Allen head screws: they stay on the tool and the tool doesn’t slip. Heck, even the Philips head is preferable, but not by much.
As I was using the nut driver to screw M0.6 screws into 622’s crank pins, it dawned on me that hex-head screws have all the same benefits as Robertsons. Not only that, but they look less screwish if they sneak into view on a model.
So for Christmas, I asked Santa to bring me a set of nut drivers, and she duly filled my stocking with them. It’s taken me half a pandemic year to get some packets of screws, but these will be the new standard. Unless I need a countersunk screw, it will be hex from now on.