Imperial, Metric, Fine, Metric, Coarse, Inch, Metric
M20x2.5, M8, #6-32, M10 x 1.50, M2x0.4
2 1/8", 18 mm, 60 mm, 85 mm, 6 1/2"
Steel, Steel, Alloy Steel, Stainless Steel, Titanium, Nylon, Plastic
Low-Profile Standard, Flat, Button, Ultra-Low-Profile Standard, Flanged Standard
Phillips, Hex Socket, Socket, External Square, Slotted