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Hex Washer Head

  • Hex Washer Head Self-Drilling Screws with EPDM bonded washer

    Hex Washer Head Self-Drilling Screws with EPDM bonded washer

    Application
    For medium duty purpose
    Steel structure fittings, rock wool board, etc
    Wall panel or panel fixation
    Features
    Partial thread,double thread,full thread design,Not easy to break
    Strong torsion and high hardness
    Good concentricity, not easy to bend, easy to operate
    EPDM washer，Good waterproof performance
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