| CENTER HOLE SHAPE STYLE | ROUND |
| CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| HOLE DIAMETER | 6.40 MILLIMETERS MINIMUM AND 6.70 MILLIMETERS MAXIMUM |
| MATERIAL | STEEL OVERALL |
| PERIPHERAL SHAPE STYLE | ROUND |
| OVERALL DIAMETER | 13.60 MILLIMETERS MINIMUM AND 14.00 MILLIMETERS MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | BS1706 GRADE FE/ZN8C2 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC OVERALL |
| THICKNESS | 1.40 MILLIMETERS MINIMUM AND 1.80 MILLIMETERS MAXIMUM |