Socket Screw, Machine, Self Drilling Screws, Flat Head Screw, External Hex
Imperial, Metric, Fine, Metric, Coarse, Inch, Metric
5/16"-18, 5/16 in, 3/8"-16, 3/8 in, M16-2.00, M16, 1/4 in, 1/4"-28, 1/4 in, 1/4"-20
1 9/16", 45 mm, 40 mm, 130 mm, 3 11/16"
Brass, Steel, Alloy Steel, Nylon, Plastic, Titanium, Steel
Button, Ultra-Low-Profile Standard, Standard, Flanged Button, Flat
Torx, Hex, Socket, Slotted, External Square