Machine, Socket Screw, Self Drilling Screws, Flat Head Screw
Imperial, Metric, Fine, Metric, Coarse, Metric, Inch
1/2"-20, 1/2 in, 9/16"-12, 9/16 in, 7/8"-9, 7/8 in, 1/2"-13, 1/2 in, 1-1/8"-7, 1-1/8 in
80 mm, 1 9/16", 60 mm, 85 mm, 55 mm
Brass, Steel, Steel, Alloy Steel, Nylon, Plastic, Titanium
Flanged Button, Low-Profile Standard, Flat, Ultra-Low-Profile Standard, Standard
Phillips, Slotted, External Square, Socket, External Hex