Mounting Flanges | McMaster-Carr

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System of Measurement

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Material

Hastelloy C276 Nickel

Shape

Fitting Type

Fitting Connection

Quick-Disconnect Clamp

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Number of Bolt Holes

Pressure Class

For Flange ANSI Class

Flange OD

Flanged Connection Surface

For Use With

Blank Mounting Patterns

Grooved-End Pipe Fittings

ISO Mounting Patterns

Low Stress-to-Seal Flanges

Mounted Bearing Type

Four-Bolt Flange Mount

Three-Bolt Flange Mount

Two-Bolt Flange Mount

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Thickness

Pipe Material

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

RoHS

Compliant

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

Export Control Classification Number (ECCN)

DFARS Specialty Metals

Maximum Temperature

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5,552 Products

Fluid Handling

Pipe Flanges

Bolt together with a gasket to create an access point within a line

1,267 products

Pipe Straights

Join lengths of pipe to send contents in one direction

43 products

Pipe Flange Adapters

Combine with a two-piece pipe flange to build a customized flange connection

13 products

Pipe Elbows

Change the direction of flow when joining lengths of pipe

6 products

Pipe Tees

Split or merge liquid flow paths

4 products

Pipe Stub Ends

Connect a pipe flange to a pipe without needing to weld it in place

154 products

Pipe Expansion Joints

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

152 products

Pipe Bleed Rings

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

22 products

Tube Fittings

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

262 products

Hose Fittings

Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose

26 products

Orifice Valves

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

24 products

Building and Machinery Hardware

Slip-On Framing Rail Mounts

Mount slip-on framing structures to floors, walls, and ceilings

111 products

Clamp-On Framing and Fittings

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

64 products

Flush-Fit Framing Rail Ends

Secure flush-fit framing structures to floors, walls, and ceilings

3 products

Press-Fit Framing Rail Mounts

Bolt rails to floors, walls, and ceilings to secure your press-fit structure

6 products

Bellows

Prevent dust and debris from damaging moving parts

472 products

Power Transmission

Bearing Housings

Mount your own bearings in place

24 products

Mounted Bearings

Ball, roller, and sleeve bearings ready to bolt in place

540 products

Linear Bearing Housings

Hold linear ball or sleeve bearings by sliding them in and securing with retaining rings

10 products

Shaft Collars

Hold and position parts on a shaft, or limit shaft movement

92 products

Shaft Collar Adapters

Sized specifically to adapt standard shaft collars to pipe, creating a tight fit

12 products

Linear Shaft Supports

Support linear shafts to prevent bending and rolling under loads

42 products

Precision Lead Screw Nuts

Pair with precision lead screws for accurate starts and stops in your assembly

114 products

Precision Lead Screw Nut Flanges

Pair with precision lead screw nuts to make custom flange nuts that move items along lead screws

18 products

Ball Screws and Nuts

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

43 products

Lead Screw Nuts

Mate with lead screws to move components in a straight line

33 products

Carriages

Carry loads along guide rails on accurate and repeatable paths in automated systems

202 products

Heating, Ventilation, and Air Conditioning

Duct and Fittings

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

197 products

Diffuser Collars

Connect diffusers to duct

4 products

Chimney Storm Collars

Pair with chimney roof flashing to prevent leaks where chimneys pass through roofs

8 products

Material Handling

Robot Tool Mounts

Attach tools to robot arms

7 products

Robot Tool Changers

Swap end-of-arm tooling in a snap

15 products

Facility and Grounds Maintenance

Floor, Wall, and Ceiling Plates

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

46 products

Toilet Seat Fasteners

Secure toilet seat hinges to your toilet bowl

1 product

Urinal Flanges

Connect a urinal to your drainage system

2 products

Toilet Mounts

Secure toilet components with flanges and hardware kits

22 products

Toilet Sealing Rings

Prevent leaks where toilets mount to the floor or wall

8 products

Urinal Sealing Rings

Prevent leaks where urinals mount to the wall

2 products

Manhole Riser Rings

Raise a manhole cover to make it level with the surface

4 products

Sealing

Pipe Gaskets

Form tight seals when connecting flanged pipe fittings

1,392 products

Pipe Flashings

Create watertight seals around vent pipes on roofs, even if they expand, contract, and vibrate

13 products

Pipe Flashing Seals

Slide over roof flashings for a watertight seal without the need for caulk

3 products

Fastening and Joining

Spring Plunger Mounts

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

14 products

Fabricating and Machining

Buffing and Polishing Wheel Flanges

Connect wheels with a center hub to bench grinders and buffers

4 products