Imperial, Metric, Fine, Metric, Coarse, Metric, Inch
M12x1.75, M20x2.5, M2x0.4, M10 x 1.50, M1.6x0.35
7 1/2", 50 mm, 8 mm, 3 7/8", 18 mm
Steel, Stainless Steel, Brass, Nylon, Plastic, Titanium
Flat, Ultra-Low-Profile Standard, Standard, Flanged Standard, Flanged Button
Torx, Cross, Socket, External Square, Slotted