| FASTENER LENGTH | 0.375 INCHES NOMINAL |
| HEAD HEIGHT | 0.217 INCHES MINIMUM AND 0.233 INCHES MAXIMUM |
| HEAD STYLE | BUTTON |
| HEAD MAJOR DIAMETER | 0.638 INCHES MINIMUM AND 0.673 INCHES MAXIMUM |
| HEAT TREATMENT | SOLUTION HEAT TREATED AND ARTIFICALLY AGED |
| MATERIAL DOCUMENT AND CLASSIFICATION | BS L86 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | ALUMINUM ALLOY OVERALL |
| SHANK DIAMETER | 0.155 INCHES MINIMUM AND 0.160 INCHES MAXIMUM |
| SHANK STYLE | STRAIGHT |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DTD 913 MIL SPEC ALL TREATMENT RESPONSES OVERALL |
| SURFACE TREATMENT | ANODIZE OVERALL AND OXIDE OVERALL |