| EXTENDED WASHER DIAMETER | 22.3 MILLIMETERS MINIMUM AND 22.9 MILLIMETERS MAXIMUM |
| EXTENDED WASHER THICKNESS | 2.0 MILLIMETERS NOMINAL |
| FASTENER LENGTH | 69.5 MILLIMETERS MINIMUM AND 70.5 MILLIMETERS MAXIMUM |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 11.4 MILLIMETERS MINIMUM AND 13.2 MILLIMETERS MAXIMUM |
| HEAD STYLE | HEXAGON EXTENDED WASHER |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4037 OVERALL |
| NOMINAL THREAD DIAMETER | 12.0 MILLIMETERS |
| SHOULDER DIAMETER | 11.9 MILLIMETERS MINIMUM AND 12.0 MILLIMETERS MAXIMUM FIRST SHOULDER |
| SHOULDER LENGTH | 6.7 MILLIMETERS MINIMUM AND 7.7 MILLIMETERS MAXIMUM FIRST SHOULDER |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| WIDTH BETWEEN FLATS | 17.67 MILLIMETERS MINIMUM AND 18.00 MILLIMETERS MAXIMUM |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 22.0 MILLIMETERS MINIMUM AND 27.5 MILLIMETERS MAXIMUM |
| THREAD SERIES DESIGNATOR | M |
| THREAD PITCH IN MILLIMETERS | 1.75 |