Imperial, Metric, Fine, Metric, Coarse, Inch, Metric
M4x0.7, M10x1.5, M20x2.5, M10 x 1.50, M2x0.4
5 1/4", 3 3/4", 50 mm, 7 1/2", 1 3/8"
Brass, Steel, Alloy Steel, Steel, Titanium, Nylon, Plastic
Button, Ultra-Low-Profile Standard, Standard, Flat, Flanged Button
Pozidriv, Phillips, Socket, External Square, Slotted