Imperial, Metric, Fine, Metric, Coarse, Inch, Metric
M12x1.75, #6-40, M10 x 1.50, M2x0.4, #8-36
3 1/2", 1 7/8", 2 13/16", 18 mm, 100 mm
Brass, Steel, Stainless Steel, Nylon, Plastic, Titanium
Ultra-Low-Profile Standard, Button, Standard, Flat, Flanged Button
Phillips, Torx, Slotted, External Square, Socket