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I.D.O.D.ThicknessDim C


Square ID Hole Washers | Carriage Bolt Washers

Square ID hole washers are used on square neck carriage bolts and square shafts. Carriage bolt washers feature square holes that allow for a fairly tight fit, as opposed to a round hole that would need to be much larger to slip over the corners of the square parts with which they’re assembled. The square holes also keep the carriage bolt washers from rotating in the square shaft.

Carriage bolt washers are available in a variety of materials, such as low carbon steel, stainless steel, brass, PTFE, nylon, and aluminum. We recommend choosing a square ID hole washer in a material that aligns with the specifications of your project. Carriage bolt washers are also available in a variety of finishes, such as zinc & clear, zinc & yellow, zinc & black, and phosphate & oil. Willie Washer stocks and distributes square hole washers that feature a variety of bolt sizes. Choose a carriage bolt washer with the bolt size that meets your needs.

Contact a specialist at Willie Washer to learn more about carriage bolt washers. We are happy to answer any questions or provide additional information about square hole washers. We offer square ID hole washers at affordable prices. In addition, we offer other types of washers such as C Washers, D Shaped ID Washers, Fender Washers, and Slotted Square Washers. Give our team a call by phone at (847) 956-1344 to receive assistance finding parts and components that meet your requirements.

Set Descending Direction
Inner Diameter (ID)Outer Diameter (OD)Thickness (T)Bolt Size (Inch)MaterialFinishStockRequest a Quote
0.550 in.1.500 in.0.090 in.1/2Low Carbon Steel - Soft4401Part Detail/Quote
0.656 in.1.500 in.0.105 in.5/8Low Carbon Steel - SoftZinc & Yellow4450Part Detail/Quote
0.656 in.1.500 in.0.105 in.5/8Low Carbon Steel - SoftZinc & Clear0Part Detail/Quote
0.656 in.1.500 in.0.187 in.5/8Low Carbon Steel - Soft7325Part Detail/Quote
0.512 in.1.875 in.0.060 in.1/2Low Carbon Steel - Soft1801Part Detail/Quote
0.781 in.1.750 in.0.119 in.3/4Low Carbon Steel - Soft1650Part Detail/Quote
0.781 in.1.750 in.0.062 in.3/4Low Carbon Steel - Soft27Part Detail/Quote
0.710 in.1.750 in.0.048 in.5/8Low Carbon Steel - SoftZinc & Yellow12001Part Detail/Quote
0.500 in.1.750 in.0.134 in.Low Carbon Steel - SoftZinc & Clear5700Part Detail/Quote
0.551 in.1.656 in.0.075 in.1/2Low Carbon Steel - Soft5100Part Detail/Quote
0.550 in.1.656 in.0.075 in.1/2Low Carbon Steel - Soft3105Part Detail/Quote
0.781 in.1.500 in.0.134 in.3/4Low Carbon Steel - SoftZinc & Yellow1600Part Detail/Quote
Set Descending Direction