| MATERIAL | ALUMINUM ALLOY 2011 OR |
| ALUMINUM ALLOY 2024 OR |
| ALUMINUM ALLOY 6061 OR |
| ALUMINUM ALLOY 6063 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/3 T3 FED SPEC 1ST MATERIAL RESPONSE OR |
| QQ-A-225/6 T4 FED SPEC 2ND MATERIAL RESPONSE OR |
| QQ-A-225/8 T6 FED SPEC 3RD MATERIAL RESPONSE OR |
| QQ-A-200/9 T5 FED SPEC 4TH MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CHROMATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| CROSS-SECTIONAL SHAPE | HEXAGON |
| WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL |
| STYLE DESIGNATOR | LEFT INTERNAL AND RIGHT EXTERNAL THREAD |
| LENGTH | 0.250 INCHES NOMINAL |
| RIGHT PROJECTION DIAMETER | 0.112 INCHES NOMINAL |
| RIGHT PROJECTION LENGTH | 0.188 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | UNC LEFT INTERNAL (INCLUDES THRU THREAD) |
| UNC RIGHT EXTERNAL |
| NOMINAL THREAD SIZE | 0.112 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) |
| 0.112 INCHES RIGHT EXTERNAL |
| THREAD QUANTITY PER INCH | 40 LEFT INTERNAL (INCLUDES THRU THREAD) |
| 40 RIGHT EXTERNAL |
| THREAD CLASS | 2B LEFT INTERNAL (INCLUDES THRU THREAD) |
| 2A RIGHT EXTERNAL |
| THREAD DIRECTION | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| RIGHT-HAND RIGHT EXTERNAL |
| THREAD LENGTH | 0.133 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) |
| 0.188 INCHES NOMINAL RIGHT EXTERNAL |