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Counterpoise and Hanger Calibration Weight, ASTM Class 7
As of: Wednesday, July 29, 2026
Standard Features
- Counterpoise weights for ratio weighing
- Nominal value marked on weight
- Weight capacities of 10 kg/20 lb and up meet NIST Handbook 105-1 and Handbook 44 specifications
- Metric weights designated by gold paint
- Avoirdupois weights (pound) designated by silver paint
- Serial numbers may be stamped on weights (optional)
Our cast iron weights undergo a special phosphatizing process in which the metal is thoroughly cleaned and mildly etched to allow exceptional finish adhesion. The weights are then coated with a layer of chip-resistant paint which conforms to NIST Handbook 105-1 standards. This two-step process ensures a long-lasting finish that greatly reduces the possibility of corrosion.
Classes Available:
- ASTM Class 7
Applications:
- Field standards for testing industrial devices Class III, Class IIlL or IIII
- Testing for non-marked scales without Class designation
- Verifying scales are within specified accuracy and tolerances
ASTM Class 7 Avoirdupois Round
| Part # | Description | List Price |
|---|---|---|
| 10154 | Interlocking 50lb x 1/2lb 2-29/32Dia ASTM Class 7 Cast Iron Painted | List Price: $42.00 |
| 10156 | Interlocking 100lb x 1lb 4-3/32Dia ASTM Class 7 Cast Iron Painted | List Price: $48.00 |
| 10158 | Interlocking 200lb x 2lb 4-5/32Dia ASTM Class 7 Cast Iron Painted | List Price: $42.00 |
| 10160 | Interlocking 500lb x 5lb 3-29/32Dia ASTM Class 7 Cast Iron Painted | List Price: $48.00 |
| 10152 | Interlocking 100lb x 1/2lb 2-29/32Dia ASTM Class 7 Cast Iron Painted | List Price: $42.00 |
| 10168 | Interlocking 200lb x 1lb 3-17/32Dia ASTM Class 7 Cast Iron Painted | List Price: $54.00 |
| 10189 | Interlocking 300lb x 1-1/2lb 3-17/32Dia ASTM Class 7 Cast Iron Painted | List Price: $42.00 |
| 10170 | Interlocking 500lb x 2-1/2lb 3-17/32Dia ASTM Class 7 Cast Iron Painted | List Price: $61.00 |
| 10196 | 1,000lb x 5lb 3-29/32Dia ASTM Class 7 Cast Iron Painted | List Price: $73.00 |
ASTM Class 7 Metric Hexagon
| Part # | Description | List Price |
|---|---|---|
| 10266 | 10kg x 100g 2-1/16 ASTM Class 7 Cast Iron Painted | List Price: $48.00 |
| 10268 | 25kg x 250g 3-1/4 ASTM Class 7 Cast Iron Painted | List Price: $48.00 |
| 10270 | 50kg x 500g 4 ASTM Class 7 Cast Iron Painted | List Price: $52.00 |
| 10272 | 100kg x 1kg ASTM Class 7 Cast Iron Painted | List Price: $58.00 |
| 10274 | 200kg x 2kg 4-1/32 ASTM Class 7 Cast Iron Painted | List Price: $63.00 |
ASTM Class 7 Avoirdupois Square
| Part # | Description | List Price |
|---|---|---|
| 10191 | Interlocking 50lb x 1/2lb 2-3/8 ASTM Class 7 Cast Iron Painted | List Price: $48.00 |
| 10162 | Interlocking 100lb x 1lb 3-7/16 ASTM Class 7 Cast Iron Painted | List Price: $48.00 |
| 10164 | Interlocking 200lb x 2lb 3-13/32 ASTM Class 7 Cast Iron Painted | List Price: $54.00 |
| 10166 | Interlocking 500lb x 5lb 3-9/16 ASTM Class 7 Cast Iron Painted | List Price: $91.00 |
Hangers- Round and Square
| Part # | Description | List Price |
|---|---|---|
| 10188 | 7oz 3-31/32Dia x 6-5/16H Cast AL Painted | List Price: $78.00 |
| 10184 | 10oz 3-31/32Dia x 6-5/16H Cast AL Painted | List Price: $78.00 |
| 10185 | 12oz 3-31/32Dia x 6-5/16H Cast Iron Painted | List Price: $78.00 |
| 10186 | 17oz 3-31/32Dia x 6-5/16H Cast Iron Painted | List Price: $78.00 |
| 10187 | 21oz 3-31/32Dia x 6-5/16H Cast Iron Painted | List Price: $78.00 |
| 10193 | 21oz 3-7/8 x 8H Cast Iron Painted | List Price: $78.00 |
| 10382 | 7oz 2-31/32Dia x 8-3/8H Cast AL Painted | List Price: $73.00 |
| 10379 | 10oz 2-31/32Dia x 8-3/8H Cast AL Painted | List Price: $73.00 |
| 10380 | 12oz 2-31/32Dia x 8-3/8H Cast Iron Painted | List Price: $125.00 |
| 10381 | 16oz 2-31/32Dia x 8-3/8H Cast Iron Painted | List Price: $125.00 |
ASTM Class 7 Round
| Part # | Description | List Price |
|---|---|---|
| 10367 | Interlocking 50lb x 1/2lb 2-31/32Dia ASTM Class 7 Cast Iron Painted | List Price: $54.00 |
| 10369 | Interlocking 100lb x 1lb 2-31/32Dia ASTM Class 7 Cast Iron Painted | List Price: $54.00 |
| 10371 | Interlocking 200lb x 2lb 2-31/32Dia ASTM Class 7 Cast Iron Painted | List Price: $54.00 |
| 10373 | Interlocking 300lb x 3lb 3-3/32Dia ASTM Class 7 Cast Iron Painted | List Price: $54.00 |
| 10385 | Interlocking 500lb x 5lb 3-7/32Dia ASTM Class 7 Cast Iron Painted | List Price: $54.00 |
ASTM Class 7 Round for Counting Scales
| Part # | Description | List Price |
|---|---|---|
| 10387 | Interlocking 100lb x 1-1/99lb 3Dia ASTM Class 7 Cast Iron Painted | List Price: $61.00 |
| 10391 | Interlocking 500lb x 5-5/99lb 3-3/16Dia ASTM Class 7 Cast Iron | List Price: $61.00 |
| 10427 | Interlocking 10lb x 1-1/4lb 2-15/16Dia ASTM Class 7 Cast Iron Painted | List Price: $61.00 |
| 10425 | Interlocking 5lb x 5/8lb 2-15/16Dia ASTM Class 7 Cast Iron Painted | List Price: $54.00 |
| 10411 | Interlocking 2lb x 1/4lb 2-7/32Dia ASTM Class 7 Cast Iron Painted | List Price: $54.00 |
| 10421 | Interlocking 80lb x 1-3/5lb 3Dia ASTM Class 7 Cast Iron Painted | List Price: $54.00 |
| 10419 | Interlocking 40lb x 4/5lb 2-7/8Dia ASTM Class 7 Cast Iron Painted | List Price: $54.00 |
| 10417 | Interlocking 20lb x 2/5lb 2-31/32Dia ASTM Class 7 Cast Iron Painted | List Price: $61.00 |
| 10415 | Interlocking 10lb x 1/5lb 2Dia ASTM Class 7 Cast Iron Painted | List Price: $54.00 |
| 10413 | Interlocking 5lb x 1/10lb 1-1/2Dia ASTM Class 7 Cast Iron Painted Painted | List Price: $54.00 |
| 10409 | Interlocking 100lb x 1-9/16lb 3-1/16Dia ASTM Class 7 Cast Iron Painted | List Price: $54.00 |
| 10407 | Interlocking 50lb x 25/32lb 2-15/16Dia ASTM Class 7 Cast Iron Painted | List Price: $54.00 |
| 10405 | Interlocking 25lb x 25/64lb 2-31/32Dia ASTM Class 7 Cast Iron Painted | List Price: $54.00 |
| 10404 | 10lb x 5/32lb 1-1/2Dia ASTM Class 7 | List Price: $54.00 |
Triangles - Single Weights
| Part # | Description | List Price |
|---|---|---|
| 11417 | Slotted 100lb x 1lb Cast Iron Painted | List Price: $42.00 |
| 11419 | Slotted 200lb x 2lb Cast Iron Painted | List Price: $48.00 |
| 11421 | Slotted 500lb x 5lb Cast Iron Painted | List Price: $73.00 |
Hanger
| Part # | Description | List Price |
|---|---|---|
| 11423 | 14oz 6-5/16H Painted | List Price: $73.00 |
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