Imperial, Metric, Coarse, Metric, Fine, Inch, Metric
M10x1.25, M2x0.4, M20x2.5, M1.6x0.35, M10 x 1.50
2 1/4", 2 1/8", 50 mm, 80 mm, 2 3/4"
Steel, Alloy Steel, Brass, Steel, Nylon, Plastic, Titanium
Button, Ultra-Low-Profile Standard, Standard, Flat, Flanged Button
Phillips, Hex, Socket, External Square, Slotted