The product is a set of New Steel Pre-Bulbed Cross Nuts in Zinc Yellow, designed for a threaded insert with a 1/4-20 thread size. These nuts are made of zinc material and have a yellow zinc finish. They come with additional nuts and threaded inserts included. This product is ideal for use in various industrial and business applications, and it is important to note that it has a Prop 65 Warning for the state of California. *Tool not included.