| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 5.391 INCHES NOMINAL FIRST HOLE |
| FASTENER LENGTH | 5.516 INCHES MINIMUM AND 5.562 INCHES MAXIMUM |
| GRIP LENGTH | 5.109 INCHES MINIMUM AND 5.141 INCHES MAXIMUM |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-200 FED SPEC ALL MATERIAL RESPONSES OR QQ-A-225 FED SPEC ALL MATERIAL RESPONSES OR QQ-A-430 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | ALUMINUM ALLOY OVERALL |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| SHANK UNTHREADED HOLE DIAMETER | 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM FIRST HOLE |
| WIDTH BETWEEN FLATS | 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ANODIZE OR CHROMATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.406 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNF |