Square Washers

Square washers are structural fastening components used with bolts passing through I-beam flanges. Square plate and beveled styles help create a parallel bearing surface at the bolted connection, making them useful for structural work, installation projects, maintenance, and replacement needs.

Product Display:
Helpful Buying Guide

Choose Square Washers for Your Structural Bolt Connection

The square washers represented here are designed for structural fastening through I-beam flanges, where a parallel bearing surface is needed at the connection. Compare the washer profile, listed inside diameter, thickness where provided, material construction, and package quantity before selecting.

Visual Guide

Popular examples in this category

5/8 in. Malleable Beveled Square Washer, 25-Pack5/8 in. Malleable Beveled Square Washer, 25-PackWBB22002001 in. Square Steel Plate Washer, 3/8 in. Thick, Hot-Dip Galvanized, 10-Pack1 in. Square Steel Plate Washer, 3/8 in. Thick, Hot-Dip Galvanized, 10-PackWBB21999733/4 in. Galvanized Steel Square Plate Washer, 25-Pack3/4 in. Galvanized Steel Square Plate Washer, 25-PackWBB22000095/8 in. Hardened Square Bevel Washer, 11/16 in. I.D., 25-Pack5/8 in. Hardened Square Bevel Washer, 11/16 in. I.D., 25-PackWBB2199894
Use Cases

Support bolted structural connections

Use square washers when fastening bolts through I-beam flanges in structural work. The listed plate and beveled profiles provide a parallel bearing surface for the connection.

How to Choose

Match the profile and dimensions

Choose a square plate or beveled washer based on the connection. Then compare the stated washer size, inside diameter, and thickness when a thickness is listed.

Applications

Plan for installation and maintenance

These washers are represented for structural fastening crews, contractors, maintenance crews, installers, and buyers handling bolt connections through I-beam flanges.

Additional Information

Compare construction and pack count

Available examples include galvanized steel, hot-dip galvanized steel, malleable beveled washers, and hardened steel. Pack quantities shown include 10 and 25 pieces.

2Profile types

Square plate and beveled profiles are represented.

3/8–1 in.Listed washer sizes

Examples span from 3/8 in. through 1 in.

10 or 25Pieces per package

The listed package counts are 10 and 25.

1/8–3/8 in.Listed plate thicknesses

Provided plate thicknesses range from 1/8 in. to 3/8 in.

Comparison Guide

Compare the represented square washer types

Use this overview to narrow choices by profile, listed details, and structural fastening purpose.

Washer typeListed detailsConnection use
Square plate washerGalvanized steel examples; listed inside diameters from 9/16 in. to 59/64 in.; listed thicknesses from 1/8 in. to 3/8 in.Provides a parallel bearing surface for bolts through I-beam flanges.
Malleable beveled square washerGalvanized steel examples in 3/8 in., 1/2 in., and 5/8 in. sizes; listed inside diameters include 7/16 in., 17/32 in., and 11/16 in.Beveled profile helps provide a parallel bearing surface through I-beam flanges.
Hardened square bevel washer5/8 in. example with 11/16 in. inside diameter and a 25-pack quantity.For structural fastening applications requiring a hardened washer.
Planning Guide

Plan the right fit before choosing

Washer profiles

Select plate or beveled square construction

Square plate washers provide a parallel bearing surface for bolts installed through I-beam flanges. Beveled square washers are also intended to create a parallel bearing surface in these structural bolt connections.

  • Square plate styles are listed in 1/2 in., 5/8 in., 3/4 in., 7/8 in., and 1 in. examples.
  • Beveled styles are listed in 3/8 in., 1/2 in., and 5/8 in. examples.
  • Hardened and malleable beveled washer constructions are represented.
Dimensions and fit

Review the stated opening and thickness

Inside diameter helps buyers compare a washer with the specified bolted assembly. Plate thickness varies among listed products, so review that measurement where it is provided for the fastening connection.

  • Listed inside diameters range from 7/16 in. to 59/64 in.
  • Examples include 17/32 in., 9/16 in., 11/16 in., and 13/16 in. inside diameters.
  • Listed plate thicknesses include 1/8 in., 3/16 in., 1/4 in., and 3/8 in.
Material and quantity

Buy for the scope of the work

Most represented options use galvanized steel construction, with one square plate washer described as hot-dip galvanized steel. Package quantities can help align the purchase with planned fastening points, project needs, or replacement work.

  • Many listed options come in packs of 25.
  • A 10-piece square plate washer package is also represented.
  • Galvanized steel construction is listed across plate and beveled options.
FAQ

Common questions before buying

What are square washers used for?

The represented square washers are used for structural bolt connections through I-beam flanges, where they provide a parallel bearing surface.

What is the difference between square plate and beveled washers?

Square plate washers have a plate profile, while beveled washers have a beveled profile. Both are represented for helping create a parallel bearing surface at I-beam flange connections.

Which inside diameters are listed?

Listed inside diameters include 7/16 in., 17/32 in., 9/16 in., 11/16 in., 13/16 in., and 59/64 in.

What package quantities are available?

The represented products are available in 10-piece and 25-piece packages.

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