Square Pipe Flanges | McMaster-Carr

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Flange Shape

Press-Fit Framing Component

Material

Rail OD

Pipe Size

Slip-On Framing Component

Add-On Through-Hole Connector

Rail End

Through-Hole Rail Support

Flange Width

Clamp-On Framing Component

Add-On Through-Hole Rail Support

Positioning Mount

Rail End

Through-Hole Rail Support

Flanged Connection Surface

Length

Fitting Type

Fitting Connection

Press-Fit Framing Connection

Quick Release

Standard

Press-Fit Framing Component Type

Width

Number of Mounting Holes

Rail Width

12 mm

40 mm

Export Control Classification Number (ECCN)

REACH

RoHS

Compliant with Exemptions

Not Compliant

DFARS Specialty Metals

Exempt

Slip-On Framing Component Type

45° Flange

Adjustable-Angle Flange

Specifications Met

Flange Length

Shape

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 Ends

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

6 products

Clamp-On Framing Rail Supports

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

21 products

Flush-Fit Framing Rail Ends

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

2 products

Fluid Handling

Pipe Flanges

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

62 products

Sealing

Hydraulic Tank Pipe Suction Flanges

Seal pipes passing through top plates of hydraulic tanks

5 products