| FASTENER LENGTH | 3.470 INCHES MINIMUM AND 3.530 INCHES MAXIMUM |
| HEAD DIAMETER | 2.220 INCHES MINIMUM AND 2.280 INCHES MAXIMUM |
| HEAD HEIGHT | 1.470 INCHES MINIMUM AND 1.530 INCHES MAXIMUM |
| HEAD STYLE | FLAT FILLISTER |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | FF-S-86 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD DIAMETER | 1.500 INCHES |
| SPECIAL FEATURES | MATERIAL MADE FROM NAS1352C24-56; THERE IS A GROOVE IN THE CIRCUMFERENCE OF THE HEAD 0.085 INCHES WIDE AND 0.180 INCHES DEEP |
| WIDTH ACROSS FLATS | 1.000 INCHES NOMINAL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 2.030 INCHES MINIMUM AND 2.090 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 6 |
| THREAD SERIES DESIGNATOR | UNC |
| THREAD PITCH IN MILLIMETERS | 4.2 |