It’s easy to see this property in action — a nut spins easily on a screw with finger pressure, but push the nut as hard as you can along the long axis of the screw and the screw will not start ...

a nut driver, or a flat-tip screwdriver. The most common type of this fastener has a built-in washer formed into the head. Thus, you don’t need to buy a separate washer to place under the screw ...

For those times when you could really use a quick 3D model, this metric screw generator will do the trick for screws between M2 and M16 with matching nuts and washers. Fastener hardware is pretty ...