Hex Nut-Grade 5-Thread Size- 5/18-18 In. Dorman Nut. NOT ACQ Rated; NOT FQA Compliant. Callout Size: 5/8-18; Size: 5/8. 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.
