Square Pipe Flanges | McMaster-Carr

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Material

Flange Shape

Number of Mounting Holes

Slip-On Framing Component

Add-On Through-Hole Connector

Rail End

Through-Hole Rail Support

Pipe Size

Rail OD

Rail Height

Press-Fit Framing Component

Shape

Width

Rail Type

Mounting Hole Diameter

Press-Fit Framing Component Type

Flange

Straight

Flanged Connection Surface

Rail Width

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

Yes

RoHS

Compliant

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Flange Width

Export Control Classification Number (ECCN)

Fitting Connection

Fitting Type

Flange Length

190 Products

Building and Machinery Hardware

Press-Fit Framing and Fittings

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

4 products

Slip-On Framing and Fittings

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

68 products

Flush-Fit Framing Rail Ends

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

2 products

Clamp-On Framing and Fittings

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

27 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