Stainless Steel Flanges | McMaster-Carr

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Reducing Adapter

Pressure Class

Pipe Material

304 Stainless Steel

304-304L Stainless Steel

316 Stainless Steel

316-316L Stainless Steel

Alloy 20 Stainless Steel

Flanged Connection Surface

Fitting Material

304 Stainless Steel

304-304L Stainless Steel

316 Stainless Steel

316-316L Stainless Steel

Alloy 20 Stainless Steel

Pipe Schedule

Flange OD

Number of Bolt Holes

For Use With

Specifications Met

Fed. Spec. A-A-59326

Shape

Ring with Tines

For Fitting Schedule

Thread Type

UN/UNF (SAE Straight)

Bolt Hole Diameter

Connects To

For Flange ANSI Class

For Flange Class

REACH

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

DFARS Specialty Metals

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1,766 Products

Fluid Handling

Pipe Flanges

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

Pipe Fittings

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

Expansion Joints

Expansion Joints

Reduce stress, vibration, and noise in piping systems by absorbing movement

Pipe Locknuts

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

Pipe Bleed Rings

Pipe Bleed Rings

Access inside a pipe line to vent pressure, drain liquid, and take samples

Tube Fittings

Make threaded, push to connect, barbed, and other types of connections between lengths of tube

Tube End Caps

Cover the ends of tube to keep out dirt and debris

Tube Fitting Clamps

Tube Fitting Clamps

Quickly secure connections between tube fittings, including sanitary and high-vacuum fittings

Hose and Hose Fittings

Hose and Hose Fittings

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

Tube Sampling Ports

Tube Sampling Ports

Take samples from sanitary tubing without pausing or contaminating your line

Orifice Valves

Restrict the flow of liquids and gases to precisely control rate and pressure

Heating, Ventilation, and Air Conditioning

Duct and Duct Fittings

Duct and Duct Fittings

Circulate air through HVAC systems using round, rectangular, and fabric duct

Fastening and Joining

Hex Head Screws

Hex Head Screws

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

Adhesive-Mount Nuts

Adhesive-Mount Nuts

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

Weld Nuts

Weld to metal surfaces to add permanent threads

Flange Nuts

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

Spring Plunger Mounts

Spring Plunger Mounts

Secure ball-nose and long-nose spring plungers to fixture surfaces

Sealing

Pipe Gaskets

Form tight seals when connecting flanged pipe fittings

Building and Machinery Hardware

Slip-On Framing and Fittings

Slip-On Framing and Fittings

Insert rails into fittings and tighten screws to make guards, railings, and racks

Clamp-On Framing and Fittings

Clamp-On Framing and Fittings

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

Power Transmission

Ball Screws and Nuts

Ball Screws and Nuts

Internal ball bearings roll on screws for low friction when moving components at high speeds

Machinable Shaft Ends

Machinable Shaft Ends

Mill custom pulleys, threaded hubs, sprockets, collars, and sensor targets and mount them to shafts

Facility and Grounds Maintenance

Toilet Mounts

Secure toilet components with flanges and hardware kits

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.)