This is a genuine item that is supplied directly from the original equipment manufacturer for use with Delta equipment. It is an identical replacement for a missing or a faulty cap screw that was installed on a new unit. This is a standard hardware which may have multiple applications, please make sure to refer to the appropriate diagrams...Read more of your model for the correct location and application of this component. Keep in mind this high-quality screw is made of durable metal and is sold individually.