Square Pipe Flanges | McMaster-Carr

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Flange Shape

Material

Slip-On Framing Component

Add-On Through-Hole Connector

Rail End

Through-Hole Rail Support

Rail OD

Width

Pipe Size

Number of Mounting Holes

Press-Fit Framing Component

Rail Height

Shape

Rail Type

Flanged Connection Surface

Flat

O-Ring Groove

Mounting Hole Diameter

Press-Fit Framing Component Type

Fitting Connection

Fitting Type

Press-Fit Framing Connection

Rail Width

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

Yes

RoHS

Compliant

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

Export Control Classification Number (ECCN)

2A999

2B999

EAR99

DFARS Specialty Metals

Flange Width

Flange Length

190 Products

Building and Machinery Hardware

Press-Fit Framing Rail Ends

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

1 product

Press-Fit Framing Rails

Set up temporary partitions, guards, and displays using only a hammer

3 products

Slip-On Framing and Fittings

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

68 products

Clamp-On Framing Rail Supports

Run clamp-on framing rails in parallel to support long lengths without additional components

21 products

Clamp-On Framing Rail Ends

Connect to clamp-on framing rails to mount your structure to floors, walls, and ceilings

6 products

Flush-Fit Framing Rail Ends

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

2 products

Fluid Handling

Pipe and Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases

62 products

Sealing

Hydraulic Tank Pipe Suction Flanges

Seal pipes passing through top plates of hydraulic tanks

5 products