Standard Weights | McMaster-Carr

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247 Products

Test Weights

Test Weight Sets with Calibration Certificate

A certificate of calibration traceable to NIST states that these test weight sets have passed a test for accuracy.

Test Weights with Calibration Certificate

These test weights come with a certificate of calibration traceable to NIST that states they’ve passed a test for accuracy.

Test Weights

Calibrate your scale with these test weights.

Legal-for-Trade Test Weights

Use with legal-for-trade scales.

Test Weight Sets

Keep a variety of test weights on hand to calibrate your scales.

Precision Test Weight Sets
with Calibration Certificate

These highly accurate test weight sets for calibrating precision scales come with a certificate of calibration traceable to NIST that states they’ve passed a test for accuracy.

Precision Test Weights

Our most accurate test weights, these are often used to calibrate precision scales.

Precision Test Weights with Calibration Certificate

Often used to calibrate precision scales, these highly accurate test weights come with a certificate of calibration traceable to NIST that states they’ve passed a test for accuracy.

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.

Precision Test Weight Sets

Use these highly accurate test weight sets to calibrate precision scales.

Legal-for-Trade Test Weight Sets

Designed for legal-for-trade scales.

Legal-for-Trade Test Weight
Sets with Calibration Certificate

Ensure reliable calibration of legal-for-trade scales—these test weight sets come with a certificate of calibration traceable to ASTM that states they’ve passed a test for accuracy.

Grip-Handle Test Weights

Legal-for-Trade Grip-Handle Test
Weights with Calibration Certificate

To confirm accurate calibration of legal-for-trade scales, these test weights come with a certificate of calibration traceable to ASTM that states they’ve passed a test for accuracy.

Grip-Handle Test Weights

A handle makes it easy to move these test weights.

Legal-for-Trade Grip-Handle Test Weights

For legal-for-trade scales.

Grip-Handle Test Weights with Calibration Certificate

A certificate of calibration traceable to NIST states that these weights have passed a test for accuracy.

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.

Legal-for-Trade Hanging Test Weights

Designed to calibrate legal-for-trade scales.

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.

Legal-for-Trade Hanging Test
Weights with Calibration Certificate

To ensure reliable 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.

Interlocking Test Weights

Stack multiple grooved weights together to calibrate your scales.

Interlocking Test Weights with Calibration Certificate

These test weights come with a certificate of calibration traceable to NIST that states they’ve passed a test for accuracy.

Counterbalance Weights for Beam Scales

Add these stackable weights to the end of a beam scale to increase its total capacity. They’re also known as counterpoise weights.

Load Securing and Stabilizing

Hanging Weight Bags

Use the adjustable strap to suspend these bags from rigging, booms, and other equipment that you need to balance.

Canopy Weights

Any way the wind blows, keep your tent or canopy secure.

Weight Bags

Hold down equipment and balance loads with these bags.

Roll-Up Weight Bags

Unroll these bags to distribute their weight over a large surface or roll them up to concentrate it in one spot.

Test Weights

Test Weight Sets with Calibration Certificate

Test Weights with Calibration Certificate

Test Weights

Legal-for-Trade Test Weights

Test Weight Sets

Precision Test Weight Setswith Calibration Certificate

Precision Test Weights

Precision Test Weights with Calibration Certificate

Legal-for-Trade Test Weightswith Calibration Certificate

Precision Test Weight Sets

Legal-for-Trade Test Weight Sets

Legal-for-Trade Test WeightSets with Calibration Certificate

Grip-Handle Test Weights

Legal-for-Trade Grip-Handle TestWeights with Calibration Certificate

Grip-Handle Test Weights

Legal-for-Trade Grip-Handle Test Weights

Grip-Handle Test Weights with Calibration Certificate

Hanging Test Weights

Hanging Test Weights

Legal-for-Trade Hanging Test Weights

Hanging Test Weights with Calibration Certificate

Legal-for-Trade Hanging TestWeights with Calibration Certificate

Interlocking Test Weights

Interlocking Test Weights

Interlocking Test Weights with Calibration Certificate

Counterbalance Weights for Beam Scales

Counterbalance Weights for Beam Scales

Load Securing and Stabilizing

Hanging Weight Bags

Canopy Weights

Weight Bags

Roll-Up Weight Bags

Precision Test Weight Sets
with Calibration Certificate

Legal-for-Trade Test Weights
with Calibration Certificate

Legal-for-Trade Test Weight
Sets with Calibration Certificate

Legal-for-Trade Grip-Handle Test
Weights with Calibration Certificate

Legal-for-Trade Hanging Test
Weights with Calibration Certificate