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

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Add-On Through-Hole Rail Support

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Press-Fit Framing Component Type

Width

Rail Width

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Export Control Classification Number (ECCN)

REACH

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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