HIGH QUALITY STEEL - The stainless steel lock nut is superior to ordinary steel surfaces and offers good rust resistance. NUTS YOU CAN TRUST - Our heavy duty hex lock nuts are very strong and are perfect for both indoor and outdoor use. Highly resistant to rotation, which prevents the lock nuts from weakening and loosening under vibration and torque, which reduces the holding force. Guaranteed to remain intact and firmly gripped, making them virtually indestructible. IDEAL TO HAVE ON HAND - Bolt Dropper hex lock nuts are perfect 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. Lock nuts are used to attach to a bolt when mechanically joining materials. The bolt threads in the nylon material are at the top of the nut. The purpose of the nylon insert is to prevent shrinkage or loosening due to vibrations. Delivery quantity: 25 pieces Color: Silver Size: M6 6 * 10mm, Height: 1mmWelcome to meet