3 1/2 Flanges | McMaster-Carr

Filter by

System of Measurement

Pipe Size

Fitting Type

Bolt Circle Diameter

Material

Flanged Connection Surface

Number of Bolt Holes

Flange OD

Pressure Class

Fitting Connection

Pipe Schedule

Fitting Material

Shape

For Use With

For Flange Class

Connects To

Thread Type

ID

Flange Material

REACH Compliance

RoHS Compliance

DFARS Compliance

Bolt Hole Diameter

How can we improve?

58 Products

Fluid Handling

Pipe Flanges

Create an access point in a line by bolting two same-size flanges together with a gasket

Sealing

Pipe Gaskets

Form tight seals when connecting flanged pipe fittings

Fastening and Joining

Hex Head Screws

Hex Head Screws

Used with nuts to create a stronger joint than flat and rounded screws

Facility and Grounds Maintenance

Floor, Wall, and Ceiling Plates

Floor, Wall, and Ceiling Plates

Add a finishing touch around protruding pipes; also known as escutcheons

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)