HIGH QUALITY STEEL - Stainless steel lock nuts are one of the highest forms of corrosion resistant metals, allowing them to outlast other lock nuts on the market today The nut Stainless steel lock is superior to plain steel finish and offers good rust resistance. NUTS YOU CAN RELY ON - Our heavy-duty hex lock nuts are heavy duty and perfect for indoor and outdoor use. Highly resistant to rotation, preventing lock nuts from weakening and loosen under vibration and torque, reducing holding force. Guaranteed to stay intact and in a firm grip, making it virtually indestructible. Great to keep around - Bolt Dropper Hex Nuts are great for use in wood and wet environments. They are strong, corrosion resistant and will support all your projects. NYLON INSERT - Lock nuts are also called stop nuts. Locknuts are used for fastening to a bolt when mechanically joining materials. The bolt threads in the nylon material are located at the top of the nut. The purpose of the nylon insert is to prevent