Understanding Markings and Grades on Nuts and Bolts – Fasteners Plus

When it comes to nuts and bolts, there are many markings that you may come across. Common markers include letters, numbers, dashes, slashes, dots, and many more. The markings are an indication of the fastener's make, material, and dimension.
Why do fasteners have markings? Read more to learn about the different markings bolts, screws, and anchors have and how they can help you.

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