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    Grade 9
    Tensile Strength
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    180,000 psi
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    Rockwell C38
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    78 Products

    Extreme-Strength Grade 9 Steel Hex Head Screws

    Head
    Lg.ThreadingMin.
    Thread
    Lg.Wd.Ht.Tensile
    Strength,
    psiPkg.
    Qty. Pkg.
    Zinc Yellow-Chromate Plated Grade 9 Steel
    1/4"-20
    5/16"-18
    3/8"-16
    7/16"-14
    1/2"-13
    5/8"-11