| FASTENER LENGTH | 0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM |
| HARDNESS RATING | 42.0 ROCKWELL A MINIMUM AND 62.0 ROCKWELL A MAXIMUM OVERALL |
| HEAD STYLE | HEADLESS (SETSCREW) |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5070 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 1022 OVERALL |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| POINT CHAMFER ANGLE | 45.0 DEGREES NOMINAL |
| POINT DIAMETER | 0.240 INCHES MINIMUM AND 0.245 INCHES MAXIMUM |
| POINT LENGTH | 0.200 INCHES MINIMUM AND 0.240 INCHES MAXIMUM |
| POINT STYLE | CHAMFER DOG |
| WIDTH ACROSS FLATS | 0.1562 INCHES MINIMUM AND 0.1582 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 5070 ASSN STD 1ST TREATMENT RESPONSE OR AMS 2481 ASSN STD 2ND TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PHOSPHATE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.150 INCHES MINIMUM AND 0.170 INCHES MAXIMUM |
| THREAD CLASS | 3A |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNF |