| CONCENTRIC HOLE DIAMETER | 0.260 INCHES MINIMUM AND 0.267 INCHES MAXIMUM |
| COUNTERBORE DIAMETER | 0.577 INCHES MINIMUM AND 0.586 INCHES MAXIMUM |
| COUNTERBORE DEPTH | 1.690 INCHES NOMINAL |
| CRITICALITY CODE JUSTIFICATION | AAVH |
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.767 INCHES NOMINAL FIRST HOLE |
| FASTENER LENGTH | 1.891 INCHES NOMINAL |
| HEAD HEIGHT | 0.446 INCHES NOMINAL |
| HEAD STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000,COND C4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| MINIMUM TENSILE STRENGTH | 200000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.625 INCHES |
| SHANK UNTHREADED HOLE DIAMETER | 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE |
| SHOULDER DIAMETER | 0.8725 INCHES MINIMUM AND 0.8738 INCHES MAXIMUM |
| SHOULDER LENGTH | 1.370 INCHES NOMINAL |
| STYLE DESIGNATOR | COUNTERBORE UNTHREADED |
| WIDTH BETWEEN FLATS | 1.250 INCHES NOMINAL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | LC+77-1061 FSCM 36659 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| TEST DATA DOCUMENT | 36659-LC+72-1076 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 3A |
| THREAD LENGTH | 0.355 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | UNJF |
| THREAD QUANTITY PER INCH | 18 |