| FASTENER LENGTH | 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM |
| HEAD HEIGHT | 0.046 INCHES MINIMUM AND 0.054 INCHES MAXIMUM |
| HEAD STYLE | BUTTON |
| HEAD MAJOR DIAMETER | 0.237 INCHES MINIMUM AND 0.263 INCHES MAXIMUM |
| HEAT TREATMENT | SOLUTION HEAT TREATED AND ARTIFICALLY AGED |
| MATERIAL DOCUMENT AND CLASSIFICATION | BS L37 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | ALUMINUM ALLOY OVERALL |
| SHANK DIAMETER | 0.124 INCHES MINIMUM AND 0.128 INCHES MAXIMUM |
| SHANK STYLE | STRAIGHT |