Imperial, Metric, Coarse, Metric, Fine, Metric, Inch
M16x2, M1.6x0.35, 1/4"-20, #8-36, #6-40
1 3/8", 2 13/16", 1 1/4", 30 mm, 20 mm
Brass, Steel, Steel, Alloy Steel, Nylon, Plastic, Titanium
Flanged Standard, Standard, Ultra-Low-Profile Standard, Flat, Flanged Button
Cross, Phillips, Socket, External Square, Slotted