Square Flange - Round Pipe (50 NB 4 Hole)

Square pipe flanges (using round pipes) are used to secure pipe (by welding) to the fixable (4 attachment holes) flange surface. Square pipe flanges are typically used to support fence post uprights onto hard surfaces, however they are also used to fix horizontal round pipe, such as in guard rails.

Flanges are 100% hot dip galvanized.