Schroeder has a line of reservoir weld flanges. These flanges have SAE female O-ring port threads and are intended to be welded into a reservoir.
Unit of Measure

Specifications

Port Thread Size

N/A 2 1/2 in. - 12 UNF-2B

SAE Size

N/A SAE 32

Type

N/A SAE female O-ring port threads and are intended to be welded into a reservoir.

Material

N/A Forged Steel

Finish

N/A Black Phosphate (Suitable for Welding)

Dimensions

Outside Diameter

N/A 3.5 in89 mm

Hole Diameter

N/A 2.63 in67 mm

Flange Thickness

N/A 0.59 in15 mm

Hub Diameter

N/A 2.88 in73 mm