McMaster-Carr logo
    System of Measurement
    System of Measurement
    Inch
    Metric
    Wrench Style
    Wrench Style
    BoxOpen End
    Square Drive
    Opening Shape
    Opening Shape
    12-PointRounded
    6-Point
    Head Style
    Head Style
    StandardOffset
    For Drive Style
    For Drive Style
    External
    Hex
    External
    12-Point
    External
    Square
    Material
    Material
    Steel
    Aluminum-Bronze
    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
    Regulations Supplement)
    click to learn more about
    Wrench Type
    Wrench Type
    Standard
    Impact
    RoHS (Restriction of Hazardous Substances)
    RoHS (Restriction of
    Hazardous Substances)
    RoHS Compliant
    REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)
    REACH (Registration,
    Evaluation, Authorization
    and Restriction of Chemicals)
    REACH Compliant
    Specifications Met
    Specifications Met
    click to learn more about
    Jaw Type
    Jaw Type
    Fixed
    Adjustable
    Square Drive Size
    Square Drive Size
    default
    3/8"
    1/2"
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    134 Products