Machine, Socket Screw, Self Drilling Screws, Flat Head Screw, External Hex
Imperial, Metric, Fine, Metric, Coarse, Metric, Inch
5/16"-18, 5/16 in, 5/16 in, 5/16"-24, 1/4 in, 1/4"-28, 7/16"-20, 7/16 in, 9/16"-12, 9/16 in
55 mm, 85 mm, 4 3/8", 3 11/16", 140 mm
Brass, Stainless Steel, Steel, Titanium, Nylon, Plastic
Flanged Standard, Ultra-Low-Profile Standard, Button, Flat, Flanged Button
Hex, Phillips, Socket, Slotted, External Square