| EXTENDED WASHER DIAMETER | 0.624 INCHES MINIMUM AND 0.676 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.035 INCHES MINIMUM AND 0.055 INCHES MAXIMUM |
| FASTENER LENGTH | 0.820 INCHES MINIMUM AND 0.880 INCHES MAXIMUM |
| FEATURES PROVIDED | CASEHARDENED |
| HARDNESS RATING | 83.0 ROCKWELL SUPERFICIAL 15-N NOMINAL OVERALL |
| HEAD HEIGHT | 0.263 INCHES MINIMUM AND 0.265 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON EXTENDED WASHER |
| INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-W-405 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1022 OVERALL |
| NONMACHINE NOMINAL THREAD DIAMETER | 0.312 INCHES |
| NONMACHINE THREAD STYLE | BLUNT (SF) OR BLUNT (TYPE SW) OR BLUNT (TYPE TT) |
| SPECIAL FEATURES | TRIANGLE /TAPTITE/ SHAPE THREADS |
| WIDTH BETWEEN FLATS | 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-16232 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PHOSPHATE ZINC OVERALL |