Machine screws are very common screws with solid external threads, which can fasten two or more components together with nuts or threaded holes. We use small size screws on machines, electrical devices,equipment,while large size screws like hexagon head screws, allen screw(allen bolt) are required at buildings,bridge,vehicles.
S-metal manufactures quality metric size screws and inch size screws. Flat head screw, pan head screw, torx head screw etc. machine screws with material of steel, stainless steel.