| HEAD COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| HEAD DIAMETER | 0.656 INCHES NOMINAL |
| HEAD STYLE | FLAT COUNTERSUNK |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A576 ASSN STD ALL MATERIAL RESPONSES OR ASTM A108 ASSN STD 5TH MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 1108 OR STEEL COMP 1008 OR STEEL COMP 1110 OR STEEL COMP 1010 OR STEEL COMP 1215 OVERALL |
| NOMINAL THREAD SIZE | 0.3125 INCHES |
| NUT DIAMETER | 0.409 INCHES MINIMUM AND 0.413 INCHES MAXIMUM |
| NUT LENGTH | 1.453 INCHES MINIMUM AND 1.483 INCHES MAXIMUM |
| NUT STYLE | BLIND RIVET W/SMOOTH ROUND SHANK |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NUT, BLIND RIVET |
| SHANK END TYPE | CLOSED |
| SPECIAL FEATURES | ULTIMATE THREAD STRENGTH: 4330 LBF |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-QQ-P-416, TYPE II, CLASS 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 18 |
| THREAD SERIES | UNIFIED NATIONAL COARSE (UNC) |