Imperial, Metric, Fine, Metric, Coarse, Inch, Metric
M1.6x0.35, M4x0.7, 1/4"-20, M20x2.5, M10 x 1.50
5 1/4", 3 1/2", 7 1/2", 200 mm, 20 mm
Steel, Alloy Steel, Steel, Stainless Steel, Titanium, Nylon, Plastic
Low-Profile Standard, Flat, Ultra-Low-Profile Standard, Button, Flanged Button
Hex, Torx, Socket, External Square, Slotted