U Bolts
| STANDARD | GRADE | FINISHING | THREAD | RANGE M*L |
| EN8 (Special) | Grade 8.8 | Mild Steel | Metric | M6, M7, M8, M10, M12, M16, M20 |
| A2&A4 | Stainless Steel 304 & 316 | Imperial UNC, UNF, BSW, BSF | M20, M24 | |
| Black | ||||
| Electro-Galvanised – Blue zinc | ||||
| Electro-Galvanised – Yellow passivateĀ (special) | ||||
| Hot-dip galvanisedĀ (special) |
