| Type | Replacement Square Head |
| Image | Supplier | Item Code | Short Description |
|---|---|---|---|
| | Dixon Valve & Coupling Co | DIX MB6200 | 3/8-16 x 2" Grd 2 Zinc Plated Steel 1-1/2" Thread Sq Hd Bolt MB6200 |
| | Dixon Valve & Coupling Co | DIX MB8300 | 1/2-13 x 3" Grd 2 Zinc Plated Steel 2" Thread Sq Hd Bolt- Infasco MB8300 |
