Imperial, Metric, Fine, Metric, Coarse, Metric, Inch
M20x2.5, #8-36, 3/8"-24, M10 x 1.50, M1.6x0.35
3 3/16", 2 1/8", 3 11/16", 3/16", 22 mm
Brass, Steel, Alloy Steel, Titanium, Nylon, Plastic, Steel
Low-Profile Standard, Flat, Ultra-Low-Profile Standard, Standard, Flanged Button
Hex, Hex Socket, Slotted, External Square, Socket