| COUNTERBORE DIAMETER | 0.113 INCHES MINIMUM AND 0.117 INCHES MAXIMUM BOSS |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| MATERIAL | STEEL COMP 304 OVERALL |
| NOMINAL THREAD SIZE | 0.112 INCHES |
| NUT COUNTERBORE DEPTH | 0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM BOSS |
| NUT DIAMETER | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM |
| NUT HEIGHT | 0.225 INCHES NOMINAL |
| NUT STYLE | CLINCH |
| PILOT LENGTH | 0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM |
| PILOT DIAMETER | 0.146 INCHES MINIMUM AND 0.148 INCHES MAXIMUM |
| SPECIAL FEATURES | KNURLED BOSS,0.030 IN. MIN,0.035 IN. MAX LG,0.170 IN. DIA |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 3608009-0001,FSCM 27914 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 40 |
| THREAD SERIES | UNIFIED NATIONAL COARSE (UNC) |