The 3/16" (M12x1.0 B) stainless steel tube nut has been designed for superior performance, durability and strength. It features a rugged construction that is perfect for automotive brake line repairs or replacements. Its plated finish offers superior corrosion resistance, making it an ideal choice for both steel and copper-nickel lines as well as other materials such as PVF-coated, copper-coated steel, and stainless steel. With its M12X1.0B threading and knurled nuts, installation and removal are easy. Features: - Made with superior quality stainless steel - Plated for corrosion resistance - M12x1.0B threading - Knurled nuts for easy installation & removal Benefits: - Attaches securely to brakes lines to offer a sound repair/replacement solution - Perfect for automotive brake line repairs/replacements - Safely resists rust/corrosion over time to provide longevity