| CONCENTRIC HOLE DEPTH | 0.700 INCHES NOMINAL |
| CONCENTRIC HOLE DIAMETER | 0.338 INCHES MINIMUM AND 0.345 INCHES MAXIMUM |
| CRITICALITY CODE JUSTIFICATION | AAVH |
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 3.975 INCHES NOMINAL FIRST HOLE |
| FASTENER LENGTH | 4.100 INCHES NOMINAL |
| HEAD HEIGHT | 0.320 INCHES NOMINAL |
| HEAD STYLE | HEXAGON |
| INTERNAL THREAD CLASS | 3B COUNTERBORE |
| INTERNAL THREAD DIRECTION | RIGHT-HAND COUNTERBORE |
| INTERNAL THREAD LENGTH | 0.450 INCHES NOMINAL COUNTERBORE |
| MATERIAL | STEEL COMP XM-13 OVERALL |
| NOMINAL THREAD SIZE | 0.375 INCHES COUNTERBORE |
| NOMINAL THREAD DIAMETER | 0.625 INCHES |
| SHANK UNTHREADED HOLE DIAMETER | 0.143 INCHES MINIMUM AND 0.149 INCHES MAXIMUM FIRST HOLE |
| SHOULDER DIAMETER | 0.6395 INCHES MINIMUM AND 0.6400 INCHES MAXIMUM |
| SHOULDER LENGTH | 3.325 INCHES MINIMUM AND 3.355 INCHES MAXIMUM |
| STYLE DESIGNATOR | COUNTERBORE THREADED |
| WIDTH BETWEEN FLATS | 0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | LC+77-1061 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 | 0.575 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD SERIES | UNJF COUNTERBORE |
| THREAD QUANTITY PER INCH | 18 |
| THREADS PER INCH | 24 COUNTERBORE |