Imperial, Metric, Fine, Metric, Coarse, Inch, Metric
M20x2.5, M10x1.5, M10x1.25, M12x1.5, 5/8"-11
3 3/16", 1 7/8", 3 7/8", 2 1/2", 80 mm
Steel, Alloy Steel, Steel, Brass, Titanium, Nylon, Plastic
Flat, Ultra-Low-Profile Standard, Button, Standard, Flanged Button
Phillips, Hex, Socket, External Square, Slotted