Socket Screw, Countersunk, Grub Screw, Machine, Flat Head Screw
Imperial, Metric, Coarse, Metric, Fine, Inch, Metric
M20x2.5, M2.5x0.45, M24x3, #4-48, 7/16"-14
5 1/4", 2 1/4", 2 3/4", 130 mm, 22 mm
Aluminum, Steel, Alloy Steel, Brass, Titanium, Nylon, Plastic
Flanged Button, Flanged Standard, Flat, Ultra-Low-Profile Standard, Low-Profile Standard
Torx, Phillips, Socket, Slotted, External Square