Imperial, Metric, Fine, Metric, Coarse, Metric, Inch
M5x0.8, 1/4"-20, M10 x 1.50, 3/8"-24, M1.6x0.35
1 7/8", 2 1/4", 40 mm, 3 11/16", 2 7/8"
Stainless Steel, Steel, Alloy Steel, Nylon, Plastic, Titanium, Steel
Low-Profile Standard, Ultra-Low-Profile Standard, Flanged Standard, Flat, Flanged Button
Cross, Torx, Socket, External Square, Slotted