Hey DIYers and mechanics! If you're working on projects where things can't come loose, these chrome plated steel lock nuts are exactly what you need. This pack gives you 10 #4-40 thread nuts that provide serious holding power without slipping or loosening over time. The chrome plating isn't just for looks - it helps prevent rust and corrosion, so these nuts will last through years of use. The hex drive design means you can easily tighten them down with a standard wrench, and the coarse threads are perfect for most materials, especially if you're working with something a bit brittle. These aren't your average nuts - they're designed to interlock with the surface for a super secure hold that won't let you down. The steel construction means they can handle between 100,000 to 150,000 psi tensile strength, so they're tough enough for pretty much any project you throw at them. Whether you're working on automotive projects, machinery, furniture, or electronics, these lock nuts have you covered. The coarse threading makes installation quick and easy, and they're sturdy enough to handle multiple removals and reinstallations if needed. Seriously, if you want fasteners that actually stay put, these lock nuts are the way to go. No more worrying about vibrations loosening your work - these babies lock in place and stay there!
Free 30-day returns 
Free 30-day returns
