| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| OVERALL LENGTH | 1.000 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 8740 |
| NOMINAL THREAD SIZE | 0.250 INCHES STUD THREAD |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| SPECIAL FEATURES | IDENTIFICATION COLOR BRIGHT YELLOW ON NUT END THREADS; STUD END 70 PERCENT LOK-THRED |
| SURFACE FINISH | 125.0 MICROINCHES OVERALL |
| SURFACE FINISH | 63.0 MICROINCHES SHANK |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.438 INCHES NOMINAL NUT THREAD |
| THREAD LENGTH | 0.470 INCHES NOMINAL STUD THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| THREAD QUANTITY PER INCH | 20 STUD THREAD |