Machine, Self Drilling Screws, Socket Screw, Flat Head Screw, External Hex
Imperial, Metric, Fine, Metric, Coarse, Metric, Inch
1/4 in, 1/4"-28, 3/8 in, 3/8"-24, 1/2"-13, 1/2 in, 5/8"-11, 5/8 in, 1/4 in, 1/4"-20
3 7/8", 45 mm, 85 mm, 4 3/8", 2 7/8"
Brass, Steel, Alloy Steel, Steel, Titanium, Nylon, Plastic
Ultra-Low-Profile Standard, Button, Standard, Flat, Flanged Button
Hex Socket, Hex, Socket, External Square, Slotted