| MATERIAL | STEEL OVERALL |
| CENTER HOLE SHAPE STYLE | ROUND |
| HOLE DIAMETER | 6.400 MILLIMETERS MINIMUM AND |
| 6.620 MILLIMETERS MAXIMUM |
| PERIPHERAL SHAPE STYLE | ROUND |
| OVERALL DIAMETER | 11.570 MILLIMETERS MINIMUM AND |
| 12.000 MILLIMETERS MAXIMUM |
| CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| THICKNESS | 1.400 MILLIMETERS MINIMUM AND |
| 1.800 MILLIMETERS MAXIMUM |
| SPECIAL FEATURES | FINISH:D60, TYPE I PER FM100 |