Socket Screw, Machine, Self Drilling Screws, Flat Head Screw, External Hex
Imperial, Metric, Fine, Metric, Coarse, Metric, Inch
1/4 in, 1/4"-28, 3/8"-16, 3/8 in, 7/8"-9, 7/8 in, 5/8"-11, 5/8 in, 9/16"-12, 9/16 in
100 mm, 3 11/16", 160 mm, 50 mm, 45 mm
Brass, Steel, Steel, Alloy Steel, Titanium, Nylon, Plastic
Button, Standard, Low-Profile Standard, Flat, Flanged Button
Hex, Phillips, Socket, Slotted, External Square