| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.272 INCHES MINIMUM AND 0.323 INCHES MAXIMUM FIRST HOLE |
| FASTENER LENGTH | 0.407 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| FEATURES PROVIDED | FINISHED HEAD |
| HEAD HEIGHT | 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 410 OR STEEL COMP 416 OR STEEL COMP 430 OVERALL |
| MINIMUM TENSILE STRENGTH | 70000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 40000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 10P STYLE |
| SHANK UNTHREADED HOLE DIAMETER | 0.074 INCHES MINIMUM AND 0.082 INCHES MAXIMUM FIRST HOLE |
| 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 | 0.303 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNF |
| WIDTH BETWEEN FLATS | 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |