Imperial, Metric, Coarse, Metric, Fine, Inch, Metric
1/4"-20, #6-40, 5/16"-18, M10 x 1.50, M1.6x0.35
5 1/4", 3 3/4", 1 7/8", 1 9/16", 85 mm
Brass, Steel, Alloy Steel, Steel, Nylon, Plastic, Titanium
Ultra-Low-Profile Standard, Standard, Flanged Standard, Flat, Flanged Button
Torx, Hex Socket, Socket, External Square, Slotted