On standard nuts, Grade 2 are not marked, but Grades 5 and 8 are using a clock marking system. We will discuss how a bolt is graded. Bolt Grade Identification Bolt grade markings are used to categorize bolts according to the bolt material, manufacturing process, and mechanical properties. In this article, we'll explore the different types of nuts and bolts, covering: When to use bolts vs screws Parts of a bolt Types of bolts Types of nuts Bolt grade guide Nut grades explained Bolt sizes Hex nut dimensions Metric bolt and nut dimensions In conclusion, understanding bolt grades remains paramount for custom metal hardware manufacturers. May 20, 2025 · Discover how bolt grades impact your projects. com Nov 27, 2017 · 2-Different Strength Grades Comparison Except for the very lowest grades, metric nuts and bolts all carry identification markings which indicate their strength. The grade of the bolt is stamped on the head of the bolt. Apr 4, 2025 · Learn about bolt and nut grades, their importance in projects, and how to select the right fasteners. Mar 3, 2022 · Bolt Grades Explained Bolt grades are defined by their specific material, as well as the strength of that material. Make informed decisions and ensure the success of your mechanical engineering projects.

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