| DIAMETER | 0.373 INCHES MINIMUM AND 0.374 INCHES MAXIMUM |
| FIRST END COUNTERBORE DEPTH | 0.156 INCHES MINIMUM AND 0.166 INCHES MAXIMUM |
| FIRST END COUNTERBORE DIAMETER | 0.218 INCHES MINIMUM AND 0.223 INCHES MAXIMUM |
| FIRST END STYLE | COUNTERBORED W/O THRU HOLE |
| HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD STYLE | FLAT |
| HEIGHT | 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | TORQUE |
| MATERIAL | STEEL COMP 630 OVERALL |
| PIN HEAD DIAMETER | 0.437 INCHES NOMINAL |
| UNDER HEAD LENGTH | 1.250 INCHES NOMINAL |
| UNDERCUT WIDTH | 0.031 INCHES NOMINAL |
| UNDERCUT DIAMETER | 0.343 INCHES NOMINAL |
| STYLE DESIGNATOR | GROOVE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35,TY 1,TY 2,TY 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |