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| Main Page --- Specials |
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Grommet size chartOuter and inner sizes in millimeters |
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| Number size | Outer Diameter | Inner Diameter |
| 000 - 5/32" | 7.5 | 4 |
| 00 - 3/16" | 9 | 4.5 |
| 0 - 1/4" | 11.5 | 6 |
| 1 - 5/16" | 17.5 | 7 |
| 2 - 3/8" | 19 | 9 |
| 3 - 7/16" | 22 | 12 |
| 4 - 1/2" | 28 | 15 |