| COUNTERBORE DIAMETER | 0.347 INCHES NOMINAL BOSS |
| COUNTERBORE DIAMETER | 0.375 INCHES NOMINAL FLANGE |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 303 OVERALL |
| PILOT DIAMETER | 0.414 INCHES NOMINAL |
| PILOT LENGTH | 0.250 INCHES NOMINAL |
| NOMINAL THREAD SIZE | 0.312 INCHES |
| NUT DIAMETER | 0.625 INCHES NOMINAL |
| NUT COUNTERBORE DEPTH | 0.093 INCHES NOMINAL FLANGE |
| NUT COUNTERBORE DEPTH | 0.407 INCHES NOMINAL BOSS |
| NUT HEIGHT | 0.625 INCHES NOMINAL |
| NUT STYLE | SPLINE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | OXIDE OVERALL |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 18 |
| THREAD SERIES | UNIFIED NATIONAL COARSE (UNC) |