Imperial, Metric, Fine, Metric, Coarse, Inch, Metric
M20x2.5, 1/2"-13, 1"-8, M10 x 1.50, M2x0.4
5 1/4", 3 9/16", 7 1/2", 2 13/16", 40 mm
Stainless Steel, Steel, Alloy Steel, Steel, Titanium, Nylon, Plastic
Button, Low-Profile Standard, Ultra-Low-Profile Standard, Flanged Standard, Flat
Pozidriv, Hex Socket, Socket, External Square, Slotted