Imperial, Metric, Fine, Metric, Coarse, Metric, Inch
1/4"-20, M4x0.7, M12x1.75, #6-40, M10 x 1.50
5 1/4", 3 9/16", 50 mm, 3 11/16", 22 mm
Stainless Steel, Steel, Alloy Steel, Titanium, Steel, Nylon, Plastic
Low-Profile Standard, Button, Ultra-Low-Profile Standard, Flat, Flanged Button
Cross, Phillips, Socket, External Square, Slotted