Imperial, Metric, Metric, Fine, Metric, Coarse, Inch
M12x1.75, M10 x 1.50, M2x0.4, #6-32, #10-32
5 1/4", 2 1/16", 60 mm, 8", 50 mm
Brass, Steel, Stainless Steel, Nylon, Plastic, Titanium
Flat, Ultra-Low-Profile Standard, Button, Flanged Standard, Flanged Button
Torx, Phillips, Socket, External Square, Slotted