| EFFECTIVE LENGTH | 0.500 INCHES MINIMUM AND 0.505 INCHES MAXIMUM |
| DIAMETER | 0.310 INCHES MINIMUM AND 0.311 INCHES MAXIMUM |
| FIRST END STYLE | SQUARE |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD STYLE | FLAT |
| HEIGHT | 0.062 INCHES NOMINAL |
| INTERNAL DRIVE STYLE | TORQUE |
| MATERIAL | STEEL COMP 630 OVERALL |
| PIN HEAD DIAMETER | 0.375 INCHES NOMINAL |
| SECOND UNDERCUT DIAMETER | 0.280 INCHES NOMINAL |
| SECOND UNDERCUT WIDTH | 0.031 INCHES NOMINAL |
| SPECIAL FEATURES | CONCENTRIC HOLE LOCATED IN END ALONG THE LONGITUDINAL CENTERLINE 0.156 IN. MIN 0.161 IN. MAX DIA BY 0.156 IN. MIN 0.166 IN. MAX DP |
| STYLE DESIGNATOR | GROOVE |
| SURFACE FINISH | 32.0 MICROINCHES OUTSIDE DIAMETER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 TY 1,TY 2 OR TY 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| UNDERCUT DIAMETER | 0.215 INCHES MINIMUM AND 0.217 INCHES MAXIMUM |
| UNDER HEAD LENGTH | 0.573 INCHES MINIMUM AND 0.588 INCHES MAXIMUM |
| UNDERCUT WIDTH | 0.073 INCHES MINIMUM AND 0.083 INCHES MAXIMUM |