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    System of Measurement
    System of Measurement
    Metric
    Inch
    Thread Pitch
    Thread Pitch
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    1mm
    1.25mm
    1.5mm
    1.75mm
    2mm
    2.5mm
    For Lathe Chuck Diameter
    For Lathe Chuck Diameter
    4"
    5"
    6"
    8"
    10"
    12"
    15"
    21"
    24"
    Mounting Hole Center-to-Center
    Mounting Hole
    Center-to-Center
    0.591"
    0.713"
    0.787"
    0.984"
    1.181"
    1.26"
    1.693"
    1.96"
    2.36"
    For Jacobs Chuck Manufacturer Model Number
    For Jacobs Chuck
    Manufacturer Model Number
    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
    Regulations Supplement)
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    For Serration Size
    For Serration Size
    1.5 mm × 60°
    3 mm × 60°
    Procunier Number
    Procunier Number
    1-E
    2-E
    3-E
    4-F
    Component
    Component
    Collet Nut
    Stud Nut
    REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)
    REACH (Registration,
    Evaluation, Authorization
    and Restriction of Chemicals)
    REACH Compliant
    RoHS (Restriction of Hazardous Substances)
    RoHS (Restriction of
    Hazardous Substances)
    RoHS Compliant
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