Imperial, Metric, Fine, Metric, Coarse, Inch, Metric
M1.6x0.35, 1/4"-20, 7/16"-14, M10 x 1.50, M2x0.4
2 1/8", 1 7/8", 100 mm, 3 11/16", 8"
Steel, Stainless Steel, Steel, Alloy Steel, Nylon, Plastic, Titanium
Low-Profile Standard, Flat, Ultra-Low-Profile Standard, Standard, Flanged Button
Hex, Phillips, Socket, Slotted, External Square