Imperial, Metric, Fine, Metric, Coarse, Inch, Metric
M20x2.5, M2x0.4, M24x3, M10 x 1.50, M1.6x0.35
5 1/4", 3 3/4", 3 9/16", 100 mm, 40 mm
Aluminum, Stainless Steel, Brass, Steel, Alloy Steel, Titanium
Low-Profile Standard, Ultra-Low-Profile Standard, Button, Flat, Flanged Button
Hex, Phillips, Socket, Slotted, External Square