Machine, Self Drilling Screws, Socket Screw, Flat Head Screw
Imperial, Metric, Fine, Metric, Coarse, Metric, Inch
1/2"-20, 1/2 in, 9/16"-12, 9/16 in, 1/2"-13, 1/2 in, 1/4"-20, 1/4 in, 3/4"-10, 3/4 in
5 1/4", 2 1/16", 3 1/2", 2 1/8", 130 mm
Aluminum, Brass, Steel, Alloy Steel, Titanium, Nylon, Plastic
Low-Profile Standard, Ultra-Low-Profile Standard, Standard, Flanged Standard, Flanged Button
Phillips, Socket, External Square, Slotted, External Hex