Imperial, Metric, Fine, Metric, Coarse, Metric, Inch
M20x2.5, M12x1.75, M10x1.25, M16x2, M1.6x0.35
5 1/4", 100 mm, 18 mm, 3 11/16", 200 mm
Brass, Stainless Steel, Steel, Titanium, Nylon, Plastic
Low-Profile Standard, Ultra-Low-Profile Standard, Standard, Flat, Flanged Button
Phillips, Hex Socket, External Square, Slotted, Socket