| DIAMETER | 0.186 INCHES MINIMUM AND 0.187 INCHES MAXIMUM |
| EFFECTIVE LENGTH | 0.222 INCHES MINIMUM AND 0.232 INCHES MAXIMUM |
| FEATURES PROVIDED | CASEHARDENED |
| FIRST END STYLE | CHAMFERED |
| FIRST END TAPER ANGLE | 40.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM |
| FIRST END TAPER LENGTH | 0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM |
| HEAD STYLE | FLAT |
| HEIGHT | 0.016 INCHES MINIMUM AND 0.048 INCHES MAXIMUM |
| PIN HEAD DIAMETER | 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM |
| SECOND UNDERCUT DIAMETER | 0.178 INCHES MINIMUM AND 0.182 INCHES MAXIMUM |
| SECOND UNDERCUT WIDTH | 0.020 INCHES NOMINAL |
| STYLE DESIGNATOR | GROOVE |
| UNDER HEAD LENGTH | 0.744 INCHES MINIMUM AND 0.754 INCHES MAXIMUM |
| UNDERCUT DIAMETER | 0.030 INCHES MINIMUM AND 0.034 INCHES MAXIMUM |
| UNDERCUT WIDTH | 0.147 INCHES MINIMUM AND 0.149 INCHES MAXIMUM |