Imperial, Metric, Metric, Fine, Metric, Coarse, Inch
M24x3, M20x2.5, M1.6x0.35, 5/16"-18, M16x2
2 13/16", 40 mm, 45 mm, 2 7/8", 100 mm
Steel, Alloy Steel, Steel, Stainless Steel, Titanium, Nylon, Plastic
Low-Profile Standard, Button, Flat, Ultra-Low-Profile Standard, Flanged Button
Hex, Pozidriv, Socket, Slotted, External Square