Imperial, Metric, Fine, Metric, Coarse, Inch, Metric
M4, M12x1.75, M16x2, #6-40, M10 x 1.50
1 3/8", 55 mm, 85 mm, 90 mm, 22 mm
Steel, Alloy Steel, Steel, Stainless Steel, Nylon, Plastic, Titanium
Flat, Low-Profile Standard, Ultra-Low-Profile Standard, Flanged Standard, Flanged Button
Phillips, Torx, Socket, External Square, Slotted