Square Hole Washers



Square hole washers, also referred to as carriage bolt washers, are used on square neck carriage bolts and square shafts. The square hole allows for a tighter fit compared to a round hole that would need to be much larger to fit over the corners of the square shaft or bolt. The square hole also prevents the washer from rotating around the shaft or bolt, for a more secure fit.

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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 M14 9/16 0.594 1.250 0.105 150 Add to Quote
View Low Carbon Steel Plain 9/16 0.617 1.125 0.06 14200 Add to Quote
View Stainless Steel - 300 Series Plain 9/16 0.628 1.250 0.018 2100 Add to Quote
View Nylon 5/8 0.630 1.500 0.062 42 Add to Quote
View Low Carbon Steel Zinc & Yellow M16 5/8 0.655 1.500 0.098 5300 Add to Quote
View Stainless Steel - 316 Plain M16 5/8 0.656 1.171 0.119 0 Add to Quote
View Low Carbon Steel Plain M16 5/8 0.656 1.172 0.01 5750 Add to Quote
View Low Carbon Steel Zinc & Yellow M16 5/8 0.656 1.250 0.06 1200 Add to Quote
View Low Carbon Steel Zinc & Clear M16 5/8 0.656 1.250 0.062 8550 Add to Quote
View Low Carbon Steel Zinc & Clear M16 5/8 0.656 1.250 0.104 12335 Add to Quote
View Low Carbon Steel Zinc & Yellow M16 5/8 0.656 1.375 0.109 0 Add to Quote
View Low Carbon Steel Zinc & Clear M16 5/8 0.656 1.375 0.109 2529 Add to Quote

Customization and Material Options

Willie Washer offers square hole washers in various materials and finishes. We offer materials such as low carbon steel, spring steel, stainless steel, and some non-metallic materials for square hole washers. These parts are also available in a variety of finishes like zinc and yellow, zinc and clear, nickel, black oxide, and phosphate and oil. The different materials and finishes allow us to accommodate different environmental and structural requirements for your project.

Request a Quote for Square Hole Washers

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