| HARDNESS RATING | 27.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM |
| MATERIAL | STEEL COMP 4340 |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 0.375 INCHES NUT THREAD |
| NOMINAL THREAD SIZE | 0.375 INCHES STUD THREAD |
| NUT END SHANK DIAMETER | 0.288 INCHES MINIMUM AND 0.292 INCHES MAXIMUM |
| NUT END SHANK LENGTH | 0.772 INCHES NOMINAL |
| OVERALL LENGTH | 2.900 INCHES NOMINAL |
| SHOULDER DIAMETER | 0.500 INCHES NOMINAL |
| SHOULDER LENGTH | 0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM |
| STUD END SHANK DIAMETER | 0.288 INCHES MINIMUM AND 0.292 INCHES MAXIMUM |
| STUD END SHANK LENGTH | 0.135 INCHES NOMINAL |
| STYLE DESIGNATOR | SHOULDERED |
| SURFACE FINISH | 125.0 MICROINCHES OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | PV-F-3,MS2.01 FSCM 77272 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A NUT THREAD |
| THREAD CLASS | 3A STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.688 INCHES NOMINAL NUT THREAD |
| THREAD LENGTH | 0.925 INCHES NOMINAL STUD THREAD |
| THREAD QUANTITY PER INCH | 16 STUD THREAD |
| THREAD QUANTITY PER INCH | 24 NUT THREAD |
| THREAD SERIES DESIGNATOR | UNC STUD THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |