The tip on the end of the shaft guides these screws into holes, keeping the screw straight and threads aligned. Like a dowel, you can also fit the tip into mating holes to keep parts aligned or hold them together, such as on shafts and other moving parts. The slotted drive is the most basic drive style and can't withstand much torque, so it's best to hand-tighten them instead of using power tools. Also known as full dog point screws.

Length is measured from the top of the head.