| MATERIAL | COPPER ALLOY 260 OR |
| COPPER ALLOY 270 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-W-321 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| SURFACE TREATMENT | OXIDE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-495 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SHEAR STRENGTH | 36000 DOUBLE POUNDS PER SQUARE INCH |
| HEAD STYLE | COUNTERSUNK W/ REVERSE CHAMFER |
| HEAD HEIGHT | 0.035 INCHES MINIMUM AND |
| 0.045 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.289 INCHES MINIMUM AND |
| 0.303 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 148.0 DEGREES MINIMUM AND |
| 150.0 DEGREES MAXIMUM |
| SHANK STYLE | TUBULAR |
| FASTENER LENGTH | 0.271 INCHES MINIMUM AND |
| 0.291 INCHES MAXIMUM |
| HOLE DIAMETER | 0.099 INCHES MINIMUM AND |
| 0.104 INCHES MAXIMUM |
| SHANK DIAMETER | 0.141 INCHES MINIMUM AND |
| 0.146 INCHES MAXIMUM |
| HOLE DEPTH | 0.109 INCHES MINIMUM AND |
| 0.141 INCHES MAXIMUM |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81348 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FFR556 |
| MANUFACTURERS CODE | 96906 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS16536-92 |