| DISTANCE ACROSS FLATS | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| OVERALL LENGTH | 3.163 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | EM 85010 FSCM 73342 MFR REF SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL |
| NOMINAL THREAD SIZE | 0.312 INCHES NUT THREAD |
| NOMINAL THREAD SIZE | 0.312 INCHES STUD THREAD |
| NUT END SHANK DIAMETER | 0.309 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| NUT END SHANK LENGTH | 0.747 INCHES NOMINAL |
| SHOULDER LENGTH | 0.156 INCHES NOMINAL |
| SPECIAL FEATURES | HOLE 0.047 IN. NOM DIA THRU HEX |
| STUD END SHANK DIAMETER | 0.309 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| STUD END SHANK LENGTH | 0.260 INCHES NOMINAL |
| STYLE DESIGNATOR | SHOULDERED |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A NUT THREAD |
| THREAD CLASS | 3A STUD THREAD |
| THREAD DIRECTION | LEFT-HAND STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD LENGTH | 1.000 INCHES MINIMUM NUT THREAD |
| THREAD LENGTH | 1.000 INCHES MINIMUM STUD THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| THREAD SERIES DESIGNATOR | UNF STUD THREAD |
| THREAD QUANTITY PER INCH | 24 NUT THREAD |
| THREAD QUANTITY PER INCH | 24 STUD THREAD |