SLOT English meaning

Slot Hole Perforation Mesh - DNT Group slot hole By Martin Lee The axis tool works fine for circular holes, but when selecting a slot how can an axis be added to allow fixings to be slot bonus 1 Answer 1 I would call that a 'key hole' Yup, everything I can find calls them keyhole slots

slot codes This would specifically be called a 'counterbore slot' and is a fairly common detail which allows a slotted hole that can be used with a socket