| FIRST END STYLE | SQUARESQUARE |
| FIRST STEP LENGTH | 0.139 INCHES MINIMUM AND 0.139 INCHES MINIMUM AND 0.144 INCHES MAXIMUM0.144 INCHES MAXIMUM |
| FIRST STEP DIAMETER | 0.128 INCHES MINIMUM AND 0.128 INCHES MINIMUM AND 0.130 INCHES MAXIMUM0.130 INCHES MAXIMUM |
| HEAD STYLE | ROUND W/WRENCH FLATSROUND W/WRENCH FLATS |
| HEIGHT | 0.125 INCHES MINIMUM AND 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM0.130 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 17-4PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| PIN HEAD DIAMETER | 0.339 INCHES MINIMUM AND 0.339 INCHES MINIMUM AND 0.344 INCHES MAXIMUM0.344 INCHES MAXIMUM |
| SECOND STEP DIAMETER | 0.123 INCHES MINIMUM AND 0.123 INCHES MINIMUM AND 0.125 INCHES MAXIMUM0.125 INCHES MAXIMUM |
| SECOND STEP LENGTH | 0.090 INCHES NOMINAL0.090 INCHES NOMINAL |
| SPECIAL FEATURES | KNURL ON SHOULDE RKNURL ON SHOULDE R |
| WIDTH ACROSS FLATS | 0.125 INCHES NOMINAL0.125 INCHES NOMINAL |
| STYLE DESIGNATOR | SHOULDER |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| UNDER HEAD LENGTH | 0.229 INCHES MINIMUM AND 0.229 INCHES MINIMUM AND 0.234 INCHES MAXIMUM0.234 INCHES MAXIMUM |