| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 3.151 INCHES MINIMUM AND 3.191 INCHES MAXIMUM FIRST HOLE |
| FASTENER LENGTH | 3.321 INCHES MINIMUM AND 3.341 INCHES MAXIMUM |
| HARDNESS RATING | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP H11 OVERALL |
| MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE |
| SHOULDER DIAMETER | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER LENGTH | 2.946 INCHES MINIMUM AND 2.966 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| WIDTH BETWEEN FLATS | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS 672 ASSN STD 1ST TREATMENT RESPONSE OR NAS 672 ASSN STD 2ND TREATMENT RESPONSE OR AMS 2416 ASSN STD 2ND TREATMENT RESPONSE HEAD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS 672 ASSN STD 1ST TREATMENT RESPONSE OR NAS 672 ASSN STD 2ND TREATMENT RESPONSE OR AMS 2416 ASSN STD 2ND TREATMENT RESPONSE THREADS |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-C-320,CL 2 FED SPEC SINGLE TREATMENT RESPONSE GRIP |
| SURFACE TREATMENT | CADMIUM OR NICKEL AND CADMIUM HEAD |
| SURFACE TREATMENT | CADMIUM OR NICKEL AND CADMIUM THREADS |
| SURFACE TREATMENT | CHROMIUM GRIP |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 3A |
| THREAD LENGTH | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNJF |
| THREAD QUANTITY PER INCH | 24 |