Socket Screw, Machine, Self Drilling Screws, Flat Head Screw, External Hex
Imperial, Metric, Fine, Metric, Coarse, Metric, Inch
3/8"-16, 3/8 in, 1/4 in, 1/4"-28, M5, M5-0.80, 1/2"-13, 1/2 in, 5/16"-18, 5/16 in
3 7/8", 85 mm, 2 7/8", 160 mm, 200 mm
Brass, Steel, Steel, Alloy Steel, Nylon, Plastic, Titanium
Ultra-Low-Profile Standard, Standard, Button, Flat, Flanged Button
Torx, Hex, Slotted, External Square, Socket