Imperial, Metric, Fine, Metric, Coarse, Inch, Metric
5/16"-18, M8, M10 x 1.50, M1.6x0.35, M4x0.7
3 3/16", 2 13/16", 22 mm, 3 11/16", 3/4"
Steel, Steel, Alloy Steel, Stainless Steel, Nylon, Plastic, Titanium
Flat, Low-Profile Standard, Ultra-Low-Profile Standard, Standard, Flanged Button
Cross, Torx, Socket, External Square, Slotted