Socket Screw, Machine, Self Drilling Screws, Flat Head Screw, External Hex
Imperial, Metric, Fine, Metric, Coarse, Metric, Inch
5/8"-11, 5/8 in, 1/2"-20, 1/2 in, M5, M5-0.80, 3/8 in, 3/8"-24, 5/16 in, 5/16"-24
20 mm, 3 7/8", 80 mm, 4 3/8", 3 11/16"
Brass, Steel, Stainless Steel, Steel, Alloy Steel, Nylon, Plastic
Standard, Ultra-Low-Profile Standard, Low-Profile Standard, Flat, Flanged Button
Hex Socket, Phillips, Socket, External Square, Slotted