Manufactured from Grade 8 steel for superior strength and durability. VERSATILE & RELIABLE FOR MULTIPLE INDUSTRIES - These fasteners—bolts, nuts, and screws—are well-suited for a wide range of applications, including automotive fittings, agricultural and machinery projects . Offering construction-grade durability, they are trusted for both professional and DIY tasks, providing reliable performance in industrial supplies, automotive tools, and more. Nylon insert ensures secure locking and prevents loosening due to vibration. Ideal for automotive, construction, and heavy machinery applications. PREMIUM QUALITY PRODUCT FOR HEAVY-DUTY APPLICATIONS - Made from high-quality materials, these durable Products offer exceptional strength and reliability. Ideal for automotive tools, industrial fasteners, construction screws, agriculture fasteners, and machinery fasteners, they provide secure, long-lasting performance for commercial and DIY projects across various industries. The 1 1/8"-7 Grade 8 Hex Nylon Insert Lock Nut, Yellow Zinc, 2 Pack is a high-performance fastener designed for secure locking and vibration resistance. Crafted from Grade 8 steel with a durable yellow zinc finish, it offers exceptional tensile strength and corrosion protection. The integrated nylon insert prevents loosening under dynamic loads, making it ideal for automotive, machinery, and industrial applications. Whether used in construction or heavy-duty machinery, this lock nut ensures reliable fastening for long-lasting performance.