| DISTANCE ACROSS FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| OVERALL LENGTH | 1.640 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5640 ASSN STD SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X |
| NOMINAL THREAD SIZE | 0.190 INCHES NUT THREAD |
| NOMINAL THREAD SIZE | 0.190 INCHES STUD THREAD |
| NUT END SHANK DIAMETER | 0.186 INCHES MINIMUM AND 0.189 INCHES MAXIMUM |
| NUT END SHANK LENGTH | 0.240 INCHES MINIMUM AND 0.300 INCHES MAXIMUM |
| SHOULDER LENGTH | 0.170 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| STYLE DESIGNATOR | SHOULDERED |
| SURFACE TREATMENT | PASSIVATE 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 | 0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM NUT THREAD |
| THREAD LENGTH | 0.520 INCHES MINIMUM AND 0.560 INCHES MAXIMUM STUD THREAD |
| THREAD QUANTITY PER INCH | 32 NUT THREAD |
| THREAD QUANTITY PER INCH | 32 STUD THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| THREAD SERIES DESIGNATOR | UNF STUD THREAD |