| HARDNESS RATING | 33.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM |
| OVERALL LENGTH | 26.7 MILLIMETERS MINIMUM AND 29.5 MILLIMETERS MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | GM 500-M 10.9 FSCM 11862 MFR REF SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL |
| NOMINAL THREAD SIZE | 8.0 MILLIMETERS STUD THREAD |
| NOMINAL THREAD SIZE | 0.312 INCHES NUT THREAD |
| SHOULDER DIAMETER | 10.5 MILLIMETERS MINIMUM AND 11.1 MILLIMETERS MAXIMUM |
| SHOULDER LENGTH | 2.2 MILLIMETERS MINIMUM AND 3.2 MILLIMETERS MAXIMUM |
| STYLE DESIGNATOR | SHOULDERED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | GM 6047-M OR GM 6147-M FSCM 11862 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PHOSPHATE OVERALL |
| THREAD CLASS | 2A NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 14.5 MILLIMETERS MINIMUM AND 15.3 MILLIMETERS MAXIMUM NUT THREAD |
| THREAD LENGTH | 10.0 MILLIMETERS MINIMUM AND 11.0 MILLIMETERS MAXIMUM STUD THREAD |
| THREAD PITCH IN MILLIMETERS | 1.25 STUD THREAD |
| THREAD QUANTITY PER INCH | 18 NUT THREAD |
| THREAD SERIES DESIGNATOR | M STUD THREAD |
| THREAD SERIES DESIGNATOR | UNC NUT THREAD |
| THREAD TOLERANCE CLASS | 6G EXTERNAL STUD THREAD |