| MATERIAL | STEEL COMP 8740 | 
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE | 
| SURFACE TREATMENT | CADMIUM OVERALL | 
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | 
| STYLE DESIGNATOR | RECESSED AND STEPPED | 
| LENGTH OF RECESSED PORTION OF SHANK | 0.350 INCHES NOMINAL | 
| DIAMETER OF RECESSED PORTION OF SHANK | 0.285 INCHES MINIMUM AND | 
|  | 0.289 INCHES MAXIMUM | 
| DISTANCE ACROSS FLATS | 0.371 INCHES MINIMUM AND | 
|  | 0.375 INCHES MAXIMUM | 
| OVERALL LENGTH | 2.438 INCHES NOMINAL | 
| THREAD SERIES DESIGNATOR | UNF NUT THREAD | 
|  | UNS STUD THREAD | 
| NOMINAL THREAD SIZE | 0.375 INCHES NUT THREAD | 
|  | 0.438 INCHES STUD THREAD | 
| THREAD CLASS | 3A NUT THREAD | 
|  | 3A STUD THREAD | 
| THREAD QUANTITY PER INCH | 24 NUT THREAD | 
|  | 14 STUD THREAD | 
| THREAD DIRECTION | RIGHT-HAND NUT THREAD | 
|  | RIGHT-HAND STUD THREAD | 
| THREAD LENGTH | 0.588 INCHES NOMINAL NUT THREAD | 
|  | 0.875 INCHES NOMINAL STUD THREAD | 
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND | 
|  | 32.0 ROCKWELL C MAXIMUM | 
| SPEC/STD CONTROLLING DATA |  | 
| MANUFACTURERS CODE | 88044 | 
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | AN167914 |