Choose a Category
    Neck Type
    Neck Type
    SquareKey Locking
    Head Type
    Head Type
    FlatOval
    Fastener Strength Grade/Class
    Fastener Strength
    Grade/Class
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    click to learn more about Grade 5
    click to learn more about Grade 8
    Grade 5Grade 8
    Countersink Angle
    Countersink Angle
    default
    60°
    82°
    Specifications Met
    Specifications Met
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    Trade Number
    Trade Number
    No. 3
    No. 7
    Tensile Strength
    Tensile Strength
    120,000 psi
    150,000 psi
    Hardness
    Hardness
    Rockwell C25
    Rockwell C33
    Neck Width
    Neck Width
    0.39"
    0.45"
    0.52"
    0.64"
    0.77"
    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
    Regulations Supplement)
    Oval Top Height
    Oval Top Height
    0.1"
    0.11"
    Minimum Thread Length
    Minimum Thread Length
    1"
    1 1/2"
    1 3/4"
    2"
    Key Lock Width
    Key Lock Width
    0.17"
    0.19"
    Key Lock Length
    Key Lock Length
    0.36"
    0.39"
    0.47"
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