Machine, Self Drilling Screws, Socket Screw, Flat Head Screw, External Hex
Imperial, Metric, Coarse, Metric, Fine, Metric, Inch
M4, M4-0.70, M5, M5-0.80, 1/4 in, 1/4"-28, 5/16 in, 5/16"-24, 3/8"-16, 3/8 in
2 1/4", 2 1/8", 55 mm, 30 mm, 3"
Aluminum, Steel, Nylon, Plastic, Titanium, Steel, Alloy Steel
Flat, Ultra-Low-Profile Standard, Low-Profile Standard, Standard, Button
Hex, Phillips, Socket, External Square, Slotted