| COUNTERSINK ANGLE | 118.5 DEGREES MINIMUM AND 121.5 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.6775 INCHES MINIMUM AND 0.6975 INCHES MAXIMUM |
| HEAD HEIGHT | 0.044 INCHES NOMINAL |
| HEAD STYLE | COUNTERSUNK W/ REVERSE CHAMFER |
| HEAD MAJOR DIAMETER | 0.256 INCHES MINIMUM AND 0.258 INCHES MAXIMUM |
| HEAT TREATMENT | T-4 SOLUTION HEAT TREATED AND TEMPERED OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | RIVET, SOLID, 120 DEG FLUSH INTERFERENCE SHEAR HEAD |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-430 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | ALUMINUM ALLOY 2117 OVERALL |
| MINIMUM TENSILE STRENGTH | 38000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 18000 POUNDS PER SQUARE INCH |
| SPECIAL FEATURES | AD INDICATES 2117-T4 ALUMINUM ALLOY (UNS A92117) PER QQ-A-430. C INDICATES CHEMICAL FINISH SURFACE TREATMENT PER MIL-DTL-5541, CLASS 1A. HEAT TREATMENT PER AMS2770R. |
| SHANK DIAMETER | 0.186 INCHES MINIMUM AND 0.189 INCHES MAXIMUM |
| SHANK STYLE | STRAIGHT W/RADIUS CHAMFERED TIP |
| SPECIFICATION/STANDARD DATA | 80205-NAS-14218 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-DTL-5541, CLASS 1A MIL SPEC ALL TREATMENT RESPONSES OVERALL |
| SURFACE TREATMENT | CHROMATE OVERALL |