Hex Nut-Class 8- Thread Size: M10-1.25, Height 8mm. Dorman Nut. NOT ACQ Rated; NOT FQA Compliant. Callout Size: M10-1.25; Size: M10. Fine Thread. Dorman offers a comprehensive variety of nuts for almost any automotive fastening job. All our nuts are constructed of high-quality materials for long-lasting durability.