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- 1/4-28
- 3/8 in Long Thread Insert
| Thread Type | UNF |
| Tap Major Diameter [Max] | 0.2995 in |
| Inch Drill Size - Aluminum | 0.261 in |
| Insert Style | Free Running |
| Thread Size | 1/4 |
| Inch Drill Size - Steel, Plastic, Magnesium | 0.2638 in |
| No. of Coils | 8 1/4 |
| Inch Drill No. - Aluminum | G |
| Inch/Metric | Inch |
| Minor Diameter (After Tapping) [Min] | 0.2577 in |
| Threads per Inch | 28 |
| Insert Length | 3/8 in |
| Minor Diameter (After Tapping) [Max] | 0.2646 in |
| Weight | 0.2 LB |
