Imperial, Metric, Fine, Metric, Coarse, Inch, Metric
M20x2.5, #8-36, #3-48, M6, M10 x 1.50
5 1/4", 50 mm, 14 mm, 1 3/8", 80 mm
Steel, Alloy Steel, Brass, Steel, Titanium, Nylon, Plastic
Ultra-Low-Profile Standard, Button, Standard, Flanged Standard, Flanged Button
Hex Socket, Pozidriv, Socket, Slotted, External Square