Imperial, Metric, Fine, Metric, Coarse, Inch, Metric
M4x0.7, M20x2.5, M16x2, M2x0.4, #8-32
3 3/16", 7 1/2", 1 3/8", 3/4", 18 mm
Brass, Steel, Alloy Steel, Steel, Nylon, Plastic, Titanium
Flanged Standard, Low-Profile Standard, Flat, Ultra-Low-Profile Standard, Flanged Button
Phillips, Torx, Socket, External Square, Slotted