Socket Screw, Machine, Self Drilling Screws, Flat Head Screw, External Hex
Imperial, Metric, Fine, Metric, Coarse, Metric, Inch
3/8"-16, 3/8 in, M4, M4-0.70, 5/8"-11, 5/8 in, M5, M5-0.80, 1/4 in, 1/4"-28
3 7/8", 25 mm, 5 1/4", 3 9/16", 4 3/8"
Steel, Stainless Steel, Steel, Alloy Steel, Titanium, Nylon, Plastic
Low-Profile Standard, Button, Ultra-Low-Profile Standard, Flat, Flanged Button
Phillips, Torx, Socket, Slotted, External Square