Imperial, Metric, Fine, Metric, Coarse, Inch, Metric
M20x2.5, #6-40, M6, M8, M10 x 1.50
5 1/4", 2 1/16", 3 1/2", 2 1/8", 1 1/4"
Steel, Alloy Steel, Brass, Steel, Titanium, Nylon, Plastic
Low-Profile Standard, Ultra-Low-Profile Standard, Standard, Flanged Button, Flat
Phillips, Torx, Socket, Slotted, External Square