McMaster-Carr logo
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    11 Products

    Legal-for-Trade Test Weights with Calibration Certificate

    Image of Product. Front orientation. Test Weights. Legal-for-Trade Test Weights with Calibration Certificate.
    To ensure accurate calibration of legal-for-trade scales, these test weights come with a certificate of calibration traceable to NIST that states they’ve passed a test for accuracy. They are marked with their weight.
    Wt.,
    lb.
    Wt. Tolerance,
    lb.
    Dia.
    Ht.
    Material
    Calibration
    Wt. Class
    Specs. Met
    Certificate Type
    Each
    2-0.0002 to 0.00021 7/8"2 11/16"Stainless Steel
    		5ASTM E617 Class 5Calibration Certificate Traceable to NIST00000000000000

    Legal-for-Trade Test Weights

    Image of Product. Front orientation. Test Weights. Legal-for-Trade Test Weights.
    Calibrate legal-for-trade scales. These test weights are marked with their weight.
    Wt.,
    lb.
    Wt. Tolerance,
    lb.
    Dia.
    Ht.
    Material
    Calibration
    Wt. Class
    Specs. Met
    Each
    2-0.0002 to 0.00021 7/8"2 11/16"Stainless Steel
    		5ASTM E617 Class 500000000000000

    Hanging Test Weights

    Image of Product. Front orientation. Test Weights. Hanging Test Weights.
    The top hook lets you attach these weights to hanging scales, and the bottom hook lets you connect multiple weights in a series. The bottom hook can also retract into the weight for use with bench-top scales. Weights are marked with their weight.
    Wt.,
    lb.
    Wt. Tolerance,
    lb.
    Dia.
    Ht.
    Material
    Calibration
    Wt. Class
    Specs. Met
    Each
    2-0.0001 to 0.00012"5"Stainless Steel
    		6ASTM E617 Class 600000000000000

    Interlocking Test Weights

    Image of Product. Shown with Optional Hanger. Front orientation. Test Weights. Interlocking Test Weights.

    Shown with

    Optional

    Hanger

    Stack multiple grooved weights together to calibrate your scales. Weights are marked with their weight.
    Wt.,
    lb.
    Wt. Tolerance,
    lb.
    Dia.
    Ht.
    Slot
    Wd.
    Material
    Calibration
    Wt. Class
    Specs. Met
    Each
    2-0.0002 to 0.00025"9/16"9/16"Cast Iron6ASTM E617 Class 60000000000000
    Scale Weight Hangers
    Image of Product. Front orientation. Contains Annotated. Scale Weight Hangers. Interlocking Test Weights.
    Hangers let you test and calibrate hanging scales.
    Wt. Cap.,
    lb.
    Dia.
    Ht.
    Wt.,
    lb.
    Each
    2003 3/4"9 1/4"100000000000000
    2003 3/4"20 1/4"10000000000000

    Hanging Test Weights with Calibration Certificate

    Image of Product. Front orientation. Test Weights. Hanging Test Weights with Calibration Certificate.
    The included certificate of calibration traceable to NIST states that these test weights have passed a test for accuracy. The top hook lets you attach them to hanging scales, and the bottom hook lets you connect multiple weights in a series. The bottom hook can also retract into the weight for use with bench-top scales. Weights are marked with their weight.
    Wt.,
    lb.
    Wt. Tolerance,
    lb.
    Dia.
    Ht.
    Material
    Calibration
    Wt. Class
    Specs. Met
    Certificate Type
    Each
    2-0.0001 to 0.00012"5"Stainless Steel
    		6ASTM E617 Class 6Calibration Certificate Traceable to NIST00000000000000

    Counterbalance Weights for Beam Scales

    Image of Product. Shown with Optional Hanger. Front orientation. Counterbalance Weights. Counterbalance Weights for Beam Scales.

    Shown with Optional

    Hanger

    Add these stackable weights to the end of a beam scale to increase its total capacity. They’re also known as counterpoise weights. All are marked with their weight.
    Optional hangers (sold separately) let you hang weights on beam scales.
    Wt.,
    lb.
    Increased
    Cap., lb.
    Wt. Tolerance,
    lb.
    Dia.
    Ht.
    Slot
    Wd.
    Material
    Calibration
    Wt. Class
    Specs. Met
    Each
    2200-0.02 to 0.024 1/16"15/16"1/2"Cast Iron7ASTM E617 Class 70000000000000

    Interlocking Test Weights with Calibration Certificate

    Image of Product. Shown with Optional Hanger. Front orientation. Test Weights. Interlocking Test Weights with Calibration Certificate.

    Shown with

    Optional

    Hanger

    These test weights come with a certificate of calibration traceable to NIST that states they’ve passed a test for accuracy. Stack multiple weights together to calibrate your scales. Weights are marked with their weight.
    Wt.,
    lb.
    Wt. Tolerance,
    lb.
    Dia.
    Ht.
    Slot
    Wd.
    Material
    Calibration
    Wt. Class
    Specs. Met
    Certificate Type
    Each
    2-0.0002 to 0.00025"9/16"9/16"Cast Iron6ASTM E617 Class 6Calibration Certificate Traceable to NIST00000000000000
    Scale Weight Hangers
    Image of Product. Front orientation. Contains Annotated. Scale Weight Hangers. Interlocking Test Weights with Calibration Certificate.
    Wt. Cap.,
    lb.
    Dia.
    Ht.
    Wt.,
    lb.
    Each
    2003 3/4"9 1/4"100000000000000
    2003 3/4"20 1/4"10000000000000
    back to top