| After-sales Service: | Customized |
|---|---|
| Warranty: | More Than 5 Years |
| Name: | Square Bar Shaft Helical Screw for Mailbox Support |
| Plate Material: | ASTM A36 Hot Rolled Plate |
| Shaft Material: | 40cr(ASTM A5140) or 45#(ASTM 1045) Steel |
| Corrosion Protection: | ASTM A153 Hot Dipped Zinc Coating |
