| Neck Finish Terms |
 |
| S= |
Thread Start |
- |
Distance from top of finish to top of the start of the thread |
| H= |
Finish Height |
- |
Distance from top of finish to the intersection of the projected "T" diameter and the shoulder slope (except for 400 with bead) |
| T= |
Major Diameter |
- |
Measurement across the thread |
| E= |
Minor Diameter |
- |
Root diameter of thread |
| I= |
Hole Diameter |
- |
Hole diameter |
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