Square Flanges | McMaster-Carr

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240 Products

Building and Machinery Hardware

Press-Fit Framing Rail Ends

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

6 products

Press-Fit Framing Rails

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

3 products

Slip-On Framing Rail Ends

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

36 products

Slip-On Framing Rail Supports

Brace long runs of slip-on framing rails, either along walls or through them

4 products

Flush-Fit Framing Rail Ends

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

2 products

Clamp-On Framing Rail Ends

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

8 products

Clamp-On Framing Rail Supports

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

16 products

Fluid Handling

Pipe and Fittings

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

62 products

Power Transmission

Linear Bearings

Minimize friction as parts move along a shaft

77 products

Fastening and Joining

Quick-Release Pin Receptacles

Secure quick-release pins when you don’t have a through hole

4 products