Ingot Weights | McMaster-Carr

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331 Products

Test Weights

Calibrate your scale with these test weights.

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.

Legal-for-Trade Test Weights

Use with legal-for-trade scales.

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.

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.

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.

Test Weight Sets

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

Precision Test Weights

Our most accurate test weights, these are often used to calibrate precision 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 Weight Sets

Use these highly accurate test weight sets to calibrate precision 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.

Legal-for-Trade Test Weight Sets

Designed for legal-for-trade scales.

Grip-Handle Test Weights

Legal-for-Trade Grip-Handle Test Weights

For legal-for-trade scales.

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.

Grip-Handle Test Weights with Calibration Certificate

A certificate of calibration traceable to NIST states that these weights have 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.

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.

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

Designed to calibrate legal-for-trade scales.

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.

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.

Raw Materials

Lead Discs

Use these cast-lead discs as spacers, washers, and counterbalances.

Vinyl-Coated Lead Rods

The vinyl coating prevents lead from leaving marks on surfaces.

Lead Sheets and Bars

This material has a minimum of 99.5% pure lead content. Applications for lead include radiation shields, sound barriers, and vibration dampers.

Lead Balls

Fill forming bags for shaping metal or use as a counterweight.

Recycled Plastic and Metal Composite Sheets

Made of recycled steel mill scale and reground plastic, these sheets are a sustainable, low-cost alternative to standard composites often used as counterweights, such as lead and steel.

Material Handling

Weight Bags

Hold down equipment and balance loads with these bags.

Wheel Weights

Stick these adhesive-backed weights to the underside of your wheel rim to balance your wheels and prevent wobbling.

Rope Throw Weights

Add heft to your rope end so it lands where you need it.