Imperial, Metric, Coarse, Metric, Fine, Metric, Inch
M4x0.7, M20x2.5, M2x0.4, M24x3, #8-36
3/16", 2 1/8", 7 1/2", 3 1/8", 90 mm
Steel, Alloy Steel, Brass, Steel, Nylon, Plastic, Titanium
Flat, Low-Profile Standard, Ultra-Low-Profile Standard, Standard, Flanged Button
Hex, Hex Socket, Socket, External Square, Slotted