| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 3.240 INCHES MINIMUM AND 3.260 INCHES MAXIMUM |
| FASTENER LENGTH | 4.547 INCHES MINIMUM AND 4.577 INCHES MAXIMUM |
| FIRST DIAMETER FROM HEAD | 0.993 INCHES MINIMUM AND 0.994 INCHES MAXIMUM |
| HEAD DIAMETER | 1.615 INCHES MINIMUM AND 1.625 INCHES MAXIMUM |
| HEAD HEIGHT | 1.000 INCHES NOMINAL |
| HEAD STYLE | BEVEL-CONICAL |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 5TH MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4140 OR STEEL COMP E4340 OR STEEL COMP 6150 OR STEEL COMP 8735 OR STEEL COMP 8740 OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 1.000 INCHES |
| WIDTH ACROSS FLATS | 0.750 INCHES MINIMUM AND 0.754 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | LAC0491 FSCM 98897 MFR REF SINGLE TREATMENT RESPONSE AND 170 FSCM 98897 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.287 INCHES MINIMUM AND 1.337 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 14 |
| THREAD SERIES DESIGNATOR | UNS |