【ADVANTAGE】- Round head machine screws, hex socket drive. Metric machine screws for universal use
【MATERIAL】- Inner Hex Socket Round Head Screws are made of carbon steel, strong rust and corrosion resistant for a long time use
【APPLICATION】- Widely used in wind power industry, the aerospace industry, office equipment industry, petrochemical industry, the electronics industry, the communications industry, shipbuilding industry, environmental protection machinery, etc.