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SI INSERTS FOR PLASTICS from the PEM SI Threaded Inserts for Plastics catalogue, page 18.
| Property | Value |
|---|---|
| UNIFIED | UNIFIED |
| Thread Size | .250-20 (1/4-20) |
| Thread Code (1) | 0420 |
| Length Code | 2 |
| A ±.005 | .500 in |
| E Nom. | .332 in |
| B ± .015 | .120 in |
| S Nom. | .375 in |
| W ± .015 | .078 in |
| Property | Value |
|---|---|
| Brass | PPB |
| Property | Value |
|---|---|
| Min. Hole Depth | .540 in |
| Hole Dia. ± .002 | .313 in |