| COUNTERBORE DIAMETER | 0.322 INCHES MINIMUM AND 0.329 INCHES MAXIMUM FIRST END |
| COUNTERSINK ANGLE | 90.0 DEGREES NOMINAL SECOND END |
| OVERALL HEIGHT | 0.295 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-200/8,T4 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/8,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | ALUMINUM ALLOY 6061 OVERALL |
| NOMINAL THREAD SIZE | 0.312 INCHES |
| NUT COUNTERBORE DEPTH | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM FIRST END |
| NUT STYLE | HEXAGON |
| WASHER OUTSIDE DIAMETER | 0.530 INCHES MINIMUM AND 0.540 INCHES MAXIMUM |
| WASHER THICKNESS | 0.100 INCHES MINIMUM AND 0.115 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | P.S.13201,TY 2,CL 1,FSCM 76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ANODIZE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 3B |
| THREAD SERIES | UNJF |
| THREAD QUANTITY PER INCH | 24 |