Imperial, Metric, Fine, Metric, Coarse, Inch, Metric
M6x1, M20x2.5, M16x2, M2.5x0.45, M24x3
5 1/4", 1 3/8", 160 mm, 3 11/16", 2 7/8"
Steel, Alloy Steel, Steel, Stainless Steel, Nylon, Plastic, Titanium
Button, Flat, Ultra-Low-Profile Standard, Flanged Button, Flanged Standard
Torx, Hex, Socket, Slotted, External Square