Structural Washers | McMaster-Carr

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393 Products

About Washers

Washers for Structural Applications

Designed for use with structural screws, studs, and nuts, these washers are often used for construction and exterior building applications.

Metric Washers for Structural Applications

These thick washers are designed to support structural screws, studs, and nuts.

Tension-Indicating Washers
for Structural Applications

When you’ve applied the correct tension, these washers release an orange dye as a visual indicator.

Square Washers

Square washers fit into slots and channels and have flat sides to keep them from rotating.

Oversized Washers for Wood

Prevent screws from sinking into wood—these washers have a large OD.

Washers for Cross-Bracing

Connect cross-bracing rods or cables to structural beams.

Flanged Washers for Cross-Bracing

These washers have a flange to spread force across structural beams better than standard washers for cross-bracing rods and cables.

Rectangular Washers

Narrower than clipped and square washers, these washers are an excellent choice for slots, channels, and other tight spaces.

Leveling Washers for I-Beams

Commonly called beveled washers, these are tapered to fit inside an I-beam's flange to provide a parallel bearing surface.

Metric Leveling Washers for I-Beams

Commonly called beveled washers, these metric washers are tapered to fit inside an I-beam's flange to provide a parallel bearing surface.

Leveling Washers for U-Channels

Tapered to fit in a U-channel, these washers create a parallel bearing surface.

Square-Neck Bolt Lock Washers

Designed for use with square-neck bolts such as carriage bolts, these washers have teeth that dig into wood and other soft material to prevent rotation.