| EFFECTIVE LENGTH | 0.375 INCHES MINIMUM AND 0.380 INCHES MAXIMUM |
| DIAMETER | 0.3745 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM |
| FIRST END STYLE | CHAMFERED |
| FIRST END TAPER ANGLE | 45.0 DEGREES NOMINAL |
| FIRST END TAPER LENGTH | 0.015 INCHES NOMINAL |
| HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD STYLE | FLAT FILLISTER |
| HEIGHT | 0.250 INCHES NOMINAL |
| MATERIAL | STEEL COMP 8640 OVERALL |
| PIN HEAD DIAMETER | 0.4990 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM |
| STYLE DESIGNATOR | GROOVE |
| SURFACE FINISH | 125.0 MICROINCHES HEAD TOP |
| SURFACE FINISH | 125.0 MICROINCHES LONG SHANK |
| SURFACE FINISH | 125.0 MICROINCHES SHANK END |
| SURFACE FINISH | 32.0 MICROINCHES BEARING |
| SURFACE TREATMENT | PHOSPHATE MANGANESE OVERALL |
| UNDER HEAD LENGTH | 0.500 INCHES MINIMUM AND 0.505 INCHES MAXIMUM |
| UNDERCUT DIAMETER | 0.303 INCHES MINIMUM AND 0.313 INCHES MAXIMUM |
| UNDERCUT WIDTH | 0.052 INCHES MINIMUM AND 0.057 INCHES MAXIMUM |