Nickel-Plated Metal Threaded Caps are the most secure and protective cap we offer. They are easily applied and removed due to their threaded design, and they are often used when packing heavy or loose objects. The extra weight and movement of these objects can cause other styles of caps to become dislodged from the tube. Our metal threaded cap ensures that your product does not get lost or damaged while on display, or while being shipped or stored. Metal threaded caps are available with or without a paper liner.Black Metal Threaded Caps are available in select sizes only for a limited time.