| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.990 INCHES MINIMUM AND 1.072 INCHES MAXIMUM FIRST HOLE |
| FASTENER LENGTH | 1.188 INCHES MINIMUM AND 1.250 INCHES MAXIMUM |
| HARDNESS RATING | 235.0 BRINELL STANDARD MAXIMUM OVERALL |
| HEAD HEIGHT | 0.378 INCHES MINIMUM AND 0.403 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE 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 | 0.625 INCHES |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 10P STYLE |
| SHANK UNTHREADED HOLE DIAMETER | 0.138 INCHES MINIMUM AND 0.146 INCHES MAXIMUM FIRST HOLE |
| WIDTH BETWEEN FLATS | 0.922 INCHES MINIMUM AND 0.938 INCHES MAXIMUM |
| 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 | 1.049 INCHES MINIMUM AND 1.250 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 18 |
| THREAD SERIES DESIGNATOR | UNF |