THREAD DIRECTION | RIGHT-HAND |
FASTENER LENGTH | 5.140 INCHES MINIMUM AND |
| 5.187 INCHES MAXIMUM |
MATERIAL | ALUMINUM ALLOY OVERALL |
THREAD LENGTH | 0.437 INCHES MINIMUM AND |
| 0.516 INCHES MAXIMUM |
HEAD STYLE | HEXAGON |
THREAD SERIES DESIGNATOR | UNF |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
THREAD QUANTITY PER INCH | 28 |
THREAD CLASS | 3A |
MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-200 FED SPEC SINGLE MATERIAL RESPONSE OR |
| QQ-A-225 FED SPEC SINGLE MATERIAL RESPONSE OR |
| QQ-A-430 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
SURFACE TREATMENT | OXIDE FILM AND |
| ANODIZE OVERALL |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541 MIL SPEC 1ST TREATMENT RESPONSE AND |
| MIL-A-8625 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
MINIMUM TENSILE STRENGTH | 62000 POUNDS PER SQUARE INCH |
HEAD HEIGHT | 0.140 INCHES MINIMUM AND |
| 0.172 INCHES MAXIMUM |
WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND |
| 0.440 INCHES MAXIMUM |
GRIP LENGTH | 4.671 INCHES MINIMUM AND |
| 4.703 INCHES MAXIMUM |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 4.983 INCHES MINIMUM AND |
| 5.015 INCHES MAXIMUM FIRST HOLE |
SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM AND |
| 0.086 INCHES MAXIMUM FIRST HOLE |
FEATURES PROVIDED | FINISHED HEAD |
SPEC/STD CONTROLLING DATA | |
MANUFACTURERS CODE | 88044 |
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | AN4DD51 |