Strut Washers

What makes a strut washer different?

Strut channel, such as Unistrut and similar 1-5/8 inch systems, has inturned lips that fittings seat against. A strut washer is squared and sized so it drops between those lips and registers against the channel, unlike a round washer that would spin or pull through. That keeps the washer located while it spreads the clamping load of a bolt or threaded rod along the channel and stops the hardware from pulling into or distorting the strut. Strut washers are a staple of electrical, plumbing, and mechanical support systems built from channel. Pre-galvanized steel gives a clean, corrosion-resistant finish that matches typical strut and fittings.

Why choose strut washers

• Fits strut channel: squared to seat between the channel lips.
• Stays located: registers against the channel instead of spinning.
• Spreads load: distributes clamping force along the strut.
• Pre-galvanized: corrosion-resistant finish matching strut systems.

Common applications for strut washers

• Unistrut and strut channel assemblies
• Electrical and cable support systems
• Plumbing and mechanical pipe supports
• Threaded rod and bolt connections in channel

For general square washers, browse the main square washers category, and see related strut channel nuts for the matching hardware.

Strut Washers FAQ

What is a strut washer used for?

It seats into metal strut channel to spread the load of a bolt or threaded rod and hold the hardware in place, registering against the channel so it does not spin or pull through.

Does it fit standard strut channel?

Strut washers are squared to fit common strut channel systems such as Unistrut. Confirm the size matches your channel and fastener.

What finish are these strut washers?

Pre-galvanized steel, which gives a clean, corrosion-resistant finish that matches typical strut channel and fittings.