| EXTENDED WASHER DIAMETER | 1.293 INCHES MINIMUM AND 1.312 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.333 INCHES MINIMUM AND 0.353 INCHES MAXIMUM |
| FASTENER LENGTH | 6.719 INCHES MINIMUM AND 6.781 INCHES MAXIMUM |
| HEAD HEIGHT | 0.864 INCHES MINIMUM AND 0.875 INCHES MAXIMUM |
| HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER |
| HOLE CONFIGURATION STYLE | DOUBLE HEXAGON FLATS |
| HOLE DIAMETER | 0.055 INCHES MINIMUM AND 0.065 INCHES MAXIMUM |
| HOLE TYPE | DRILLED |
| HOLE QUANTITY | 4 |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626, COND C2 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000, COND C2 MIL SPEC 2ND MATERIAL RESPONSE OR ASTM A29 ASSN STD 3RD MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4140 OR STEEL COMP E4340 OR STEEL COMP 8640 OVERALL |
| NOMINAL THREAD DIAMETER | 0.875 INCHES |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 3.016 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 9 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| WIDTH BETWEEN FLATS | 0.868 INCHES MINIMUM AND 0.879 INCHES MAXIMUM |