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Sems screw Hex socket screw with knurled head with double washers including flat washer and spring washer

Sems screw Hex socket screw with knurled head with double washers including flat washer and spring washer

  • SEMS SCREW
  • Sems screw Hex socket screw with knurled head with double washers including flat washer and spring washer
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  • Material: carbon steel, stainless steel, alloy steel, copper, aluminum and other materials
    Hardness: specified according to the customer's drawing.
    Surface treatment: black, black zinc, nickel plating, galvanizing, etc., according to customer needs.
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