Do it 1/2 in. Plastic Basin Faucet Locknut, 2-Pack a simple and effective solution for securing your faucet in place. Designed with tightening wings, these locknuts easily screw onto faucet threads and tighten securely against the underside of the basin. Made from durable plastic, each pack includes two locknuts sized at 1/2 inch, making them for a variety of plumbing applications. The convenient card packaging ensures you have the right quantity on hand for your project. Model Number: 411361