| FASTENER LENGTH | 0.930 INCHES MINIMUM AND 0.945 INCHES MAXIMUM |
| HEAD HEIGHT | 0.208 INCHES MINIMUM AND 0.230 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | A-31,FSCM 92679 MFR REF ALL MATERIAL RESPONSES FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | A-O PART 1,FSCM 92679 MFR REF ALL MATERIAL RESPONSES PRIMARY WASHER |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| PRIMARY WASHER MATERIAL THICKNESS | 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.750 INCHES NOMINAL |
| PRIMARY WASHER STYLE | SPLIT HELICAL RING |
| SPECIAL FEATURES | WITH 0.095 IN. MIN,0.155 MAX LG DOG POINT |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.720 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| THREAD QUANTITY PER INCH | 18 |
| WASHER QUANTITY | 1 |
| WIDTH BETWEEN FLATS | 0.544 INCHES MINIMUM |