| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| OVERALL LENGTH | 6.120 INCHES MINIMUM AND 6.140 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 7456 ASSN STD SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL |
| NOMINAL THREAD SIZE | 0.312 INCHES NUT THREAD |
| NOMINAL THREAD SIZE | 0.312 INCHES STUD THREAD |
| SHOULDER DIAMETER | 0.331 INCHES MINIMUM AND 0.335 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD 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 | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM STUD THREAD |
| THREAD LENGTH | 0.750 INCHES MINIMUM AND 0.770 INCHES MAXIMUM NUT THREAD |
| THREAD SERIES DESIGNATOR | UNF STUD THREAD |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) NUT THREAD |
| THREAD QUANTITY PER INCH | 18 NUT THREAD |
| THREAD QUANTITY PER INCH | 24 STUD THREAD |