A slotted head screw is torqued to 4 Nm using a screw driver

As John points out, such is the case with the nearly universally used “flathead” screwdriver Everyone knows what a flathead screwdriver looks

Products ; Hexagon screwdriver, with T-handle · Article no : 627481 7 variants ; 3-way hexagon wrench · Article no : 627391 14 variants ; Screwdriver for slot-head

slot 88 Screwdriver slotted hexagon blade impact cap Continuous, brushed chrome-plated shank, hex bolster and 2-component handle with striking cap 7 variations

slot machine emp jammer cheat device SK Surgicals Self Holding Single Slot Screw Driver