Dave Plowman wrote:

Aren't those Torx - a sort of fluted hex? Dunno the wood screws as I've
not seen them.

Small screws/bolts tend to be Torx, which is like an Allen but
rather than the driver having a hexagonal x-section it has a 6
pointed star x-section.

Bigger bolts are often star drive (I think also called Torx,
because the company makes them), which is like a hex head, but
instead of the head having a hexagonal x-section it has a 6
pointed star x-section.

--
Grunff