| THREAD SERIES DESIGNATOR | UNS |
| FASTENER LENGTH | 0.785 INCHES MINIMUM AND 0.809 INCHES MAXIMUM |
| HARDNESS RATING | 30.0 ROCKWELL C MINIMUM OVERALL AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.181 INCHES MINIMUM AND 0.195 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 3140 OVERALL |
| POINT LENGTH | 0.139 INCHES MINIMUM AND 0.143 INCHES MAXIMUM |
| POINT STYLE | FLAT |
| POINT CHAMFER ANGLE | 90.0 DEGREES NOMINAL |
| POINT DIAMETER | 0.238 INCHES MINIMUM AND 0.242 INCHES MAXIMUM |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| NONSTANDARD THREAD PITCH DIAMETER | +0.3470/+0.3570 INCHES |
| WIDTH BETWEEN FLATS | 0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.559 INCHES MINIMUM AND 0.585 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 24 |