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The dimensions of octagonal washers are usually described by parameters such as inner diameter (ID), outer diameter (OD), octagonal side length, and washer thickness (cross-sectional diameter). You can find various sizes of specifications in the chart to meet your specific application needs. Different manufacturers may provide different sizes and specifications of octagonal washers, so you may need to consult multiple sources to find the right washer for you.
If you have specific octagonal washer size requirements, I suggest that you directly contact the manufacturer or supplier, who can usually provide detailed product specifications and size information and help you choose the washer that suits your needs.