Metric Flanges | McMaster-Carr

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System of Measurement

Material

DN Size

Fitting Type

Pipe Size

Fitting Connection

Thread Size

Number of Bolt Holes

Specifications Met

Flange OD

Bolt Circle Diameter

Nut Type

Shape

Flanged Connection Surface

For Use With

Thread Pitch

Wall Thickness

Thread Type

Metric Rounded Trapezoidal

Metric Trapezoidal

Fitting Material

Iron

Steel

Pipe Schedule

Maximum Steam Pressure @ Temperature

Export Control Classification Number (ECCN)

2B999

EAR99

RoHS

Compliant

Compliant with Exemptions

Not Compliant

DFARS Specialty Metals

REACH

746 Products

Fluid Handling

Pipe Flanges

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

8 products

Pipe Plugs

Insert into the ends of pipe to keep out dirt and debris

24 products

Pipe Fittings

Form threaded, barbed, flanged, and other types of connections between lengths of pipe

16 products

Pipe Locknuts

Thread onto the male end of a pipe fitting so it won't loosen from vibration

1 product

Tube and Tube Fittings

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

14 products

Fastening and Joining

Flange Nuts

The flange distributes pressure, so you don't need a washer

306 products

Weld Nuts

Weld to metal surfaces to add permanent threads

82 products

Adhesive-Mount Nuts

Attach threads to material that’s too thin for a threaded insert

66 products

Sealing

Pipe Gaskets

Form tight seals when connecting flanged pipe fittings

64 products

Power Transmission

Lead Screw Nuts

Mate with lead screws to move components in a straight line

48 products

Ball Screws and Nuts

Provide smooth travel where high speeds, accurate positioning, and repeatable movement are required

21 products

Building and Machinery Hardware

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

35 products

Clamp-On Framing and Fittings

Two-piece fittings let you modify assembly stations, conveyors, and racks without dismantling them

8 products