Ensure optimal fastening security with these Grade 8 Steel lock nuts. Featuring a Nylon Insert for enhanced grip and a Flanged design for easy installation, they are perfect for a wide range of applications. The Yellow Zinc finish not only adds durability but also provides a visually appealing touch. Compliant with RoHS regulations, these nuts offer peace of mind in terms of environmental responsibility. With a thread size of 1/4-20 and meeting IFI 100/107 standards, they guarantee reliable performance. Upgrade your fastening solutions with these high-quality lock nuts.