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SI INSERTS FOR PLASTICS from the PEM SI Threaded Inserts for Plastics catalogue, page 5.
| Property | Value |
|---|---|
| col0 | UNIFIED |
| Thread Size | .250-20 (1/4-20) |
| Thread Code (1) | 0420 |
| Length Code | 1 |
| A ±.005 | .300 in |
| E ±.005 | .375 in |
| C +.005 | .354 in |
| Property | Value |
|---|---|
| Brass | IUB |
| Property | Value |
|---|---|
| Min. Hole Depth | .340 in |
| D ± .002 | .349 in |
| F ± .002 | .363 in |
| R Ref. Taper Length | .100 in |