Square Plate Washers



Square plate washers, also known as square OD washers, are designed for applications where standard round washers may not be as effective. Their larger surface area distributes heavier loads more efficiently, reducing stress and preventing damage. Commonly used in heavy-duty applications and with softer materials like wood, these square plate washers provide added strength and stability. Their flat sides allow them to fit into slots and channels, ensuring a secure placement and preventing rotation.  These washers are often used in construction, woodworking and when anchoring heavy machinery.

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Material Finish Bolt Size (Metric) Bolt Size (Standard) Inside Diameter Outside Diameter Thickness Quantity in Stock Request a Quote
View Low Carbon Steel Plain M4 8 0.187 0.500 0.093 31501 Add to Quote
View Low Carbon Steel Zinc & Clear M4 8 0.187 0.551 0.047 0 Add to Quote
View Aluminum Plain M4 8 0.187 0.625 0.125 13201 Add to Quote
View Galvanized Steel Galvanized M4 8 0.187 1.390 0.052 4700 Add to Quote
View Low Carbon Steel Zinc & Clear M4 8 0.187 0.500 0.06 4815 Add to Quote
View Low Carbon Steel Plain M4 8 0.187 1.500 0.125 0 Add to Quote
View Brass Plain 8 0.188 0.500 0.094 3650 Add to Quote
View PTFE 8 0.195 0.312 0.015 26902 Add to Quote
View Low Carbon Steel Zinc & Clear 10 0.200 0.490 0.063 5400 Add to Quote
View Low Carbon Steel Plain 10 0.200 0.625 0.062 26400 Add to Quote
View Stainless Steel - 316 Plain 10 0.203 0.438 0.06 19335 Add to Quote
View Low Carbon Steel Plain 10 0.203 0.625 0.125 27251 Add to Quote

Customization and Material Options

Willie Washer offers square plate washers in a wide variety of materials and finishes, allowing us to find the right product for your applications. We offer square OD washers in materials such as low carbon steel, spring steel, stainless steel, aluminum and brass. Willie Washer also has a variety of finishes for these parts like zinc and yellow, zinc and clear, hot dip galvanized, and mechanical galvanized.

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