| THREAD DIRECTION | RIGHT-HAND |
| FASTENER LENGTH | 4.656 INCHES NOMINAL |
| MATERIAL | ALUMINUM ALLOY 3003 OR |
| ALUMINUM ALLOY 2014 OR |
| ALUMINUM ALLOY 2024 OR |
| ALUMINUM ALLOY 5083 OR |
| ALUMINUM ALLOY 5086 OR |
| ALUMINUM ALLOY 5454 OR |
| ALUMINUM ALLOY 5456 OR |
| ALUMINUM ALLOY 6053 OR |
| ALUMINUM ALLOY 6063 OR |
| ALUMINUM ALLOY 7075 OR |
| ALUMINUM ALLOY 7178 OR |
| ALUMINUM ALLOY 1100 OR |
| ALUMINUM ALLOY 2011 OR |
| ALUMINUM ALLOY 2017 OR |
| ALUMINUM ALLOY 5052 OR |
| ALUMINUM ALLOY 2117 OR |
| ALUMINUM ALLOY 5056 OR |
| ALUMINUM ALLOY 6061 OVERALL |
| THREAD LENGTH | 0.468 INCHES MINIMUM |
| 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 1ST MATERIAL RESPONSE OR |
| QQ-A-225 FED SPEC 1ST MATERIAL RESPONSE OR |
| QQ-A-430 FED SPEC 1ST MATERIAL RESPONSE OR |
| QQ-A-200 FED SPEC 2ND MATERIAL RESPONSE OR |
| QQ-A-225 FED SPEC 2ND MATERIAL RESPONSE OR |
| QQ-A-200 FED SPEC 3RD MATERIAL RESPONSE OR |
| QQ-A-225 FED SPEC 3RD MATERIAL RESPONSE OR |
| QQ-A-430 FED SPEC 3RD MATERIAL RESPONSE OR |
| QQ-A-200 FED SPEC 4TH MATERIAL RESPONSE OR |
| QQ-A-200 FED SPEC 5TH MATERIAL RESPONSE OR |
| QQ-A-200 FED SPEC 6TH MATERIAL RESPONSE OR |
| QQ-A-200 FED SPEC 7TH MATERIAL RESPONSE OR |
| QQ-A-430 FED SPEC 8TH MATERIAL RESPONSE OR |
| QQ-A-200 FED SPEC 9TH MATERIAL RESPONSE OR |
| QQ-A-200 FED SPEC 10TH MATERIAL RESPONSE OR |
| QQ-A-200 FED SPEC 11TH MATERIAL RESPONSE OR |
| QQ-A-200 FED SPEC 12TH MATERIAL RESPONSE OR |
| QQ-A-225 FED SPEC 12TH MATERIAL RESPONSE OR |
| QQ-A-430 FED SPEC 12TH MATERIAL RESPONSE OR |
| QQ-A-200 FED SPEC 13TH MATERIAL RESPONSE OR |
| QQ-A-200 FED SPEC 14TH MATERIAL RESPONSE OR |
| QQ-A-225 FED SPEC 15TH MATERIAL RESPONSE OR |
| QQ-A-430 FED SPEC 15TH MATERIAL RESPONSE OR |
| QQ-A-225 FED SPEC 16TH MATERIAL RESPONSE OR |
| QQ-A-225 FED SPEC 17TH MATERIAL RESPONSE OR |
| QQ-A-430 FED SPEC 17TH MATERIAL RESPONSE OR |
| QQ-A-225 FED SPEC 18TH MATERIAL RESPONSE OR |
| QQ-A-430 FED SPEC 18TH MATERIAL RESPONSE OR |
| QQ-A-225 FED SPEC 19TH MATERIAL RESPONSE OR |
| QQ-A-430 FED SPEC 20TH MATERIAL RESPONSE OR |
| QQ-A-430 FED SPEC 21ST MATERIAL RESPONSE OR |
| QQ-A-200 FED SPEC 22ND MATERIAL RESPONSE OR |
| QQ-A-225 FED SPEC 22ND MATERIAL RESPONSE OR |
| QQ-A-430 FED SPEC 22ND MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | ANODIZE OR |
| CHROMATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE OR |
| MIL-C-5541 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 | 4.188 INCHES NOMINAL |
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 4.500 INCHES NOMINAL FIRST HOLE |
| SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES NOMINAL FIRST HOLE |
| FEATURES PROVIDED | FINISHED HEAD |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 88044 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | AN4DD45 |