Socket Screw, Machine, Self Drilling Screws, Flat Head Screw, External Hex
Imperial, Metric, Fine, Metric, Coarse, Metric, Inch
3/8"-16, 3/8 in, M16-2.00, M16, 1/4"-20, 1/4 in, 1/4 in, 1/4"-28, 5/16"-18, 5/16 in
3 11/16", 100 mm, 20 mm, 200 mm, 55 mm
Steel, Aluminum, Nylon, Plastic, Titanium, Steel, Alloy Steel
Ultra-Low-Profile Standard, Standard, Low-Profile Standard, Flanged Standard, Flanged Button
Hex, Phillips, Socket, External Square, Slotted