120 Pieces 4#-40 Nylon Insert Hex Lock Nuts, 304 Stainless Steel - Anti-Loose Locknuts

Got a project that needs to stay put? These 120 pieces of 4#-40 nylon insert hex lock nuts are made from tough 304 stainless steel, so they resist rust and corrosion like champs. The nylon ring inside keeps them from vibrating loose—perfect for machinery, electronics, bikes, furniture, you name it. They’re coarse thread (40 threads per inch), bright silver finish, and super sturdy. Whether you’re a pro mechanic, a DIY enthusiast, or just fixing stuff around the house, this set has you covered. Use them in appliances, toys, lights, automotive work, or industrial builds. Small but mighty, and at 120 pieces, you’ll have plenty for current jobs and future fixes. Note: they’re small parts, so keep away from little kids. No more stripped threads or loose fittings—these lock nuts mean business.