- Constructed from high-quality 304 stainless steel, this product offers exceptional durability and resistance to corrosion, ensuring a long lifespan in various environments. - The innovative internal thread hexagonal lock design guarantees secure fastening, preventing loosening and enhancing reliability during use. - Available in multiple sizes: 1/8', 1/4', 3/8', 1/2', 3/4', 1', 11/4', 11/2', 2', 3', and 4', making it easy to find the perfect fit for your specific needs. - Designed specifically for nut fittings, this product ensures dependable connections, making it ideal for both professional and DIY projects. - Each pack includes 2 pieces of 1/4' size, providing you with the quantity needed to complete your tasks efficiently. Use Scenarios: - Perfect for plumbing applications where secure fittings are essential to prevent leaks. - Ideal for automotive repairs, ensuring strong connections that withstand vibrations and stresses. - Great for general construction and woodworking projects, providing reliable fastening for various materials.