Imperial, Metric, Fine, Metric, Coarse, Metric, Inch
M20x2.5, M2x0.4, M2.5x0.45, #8-32, M10 x 1.50
4 1/8", 12", 5 1/4", 2 1/4", 2 1/8"
Brass, Stainless Steel, Steel, Nylon, Plastic, Titanium
Flat, Ultra-Low-Profile Standard, Standard, Flanged Standard, Flanged Button
Hex, Pozidriv, Socket, Slotted, External Square