Aluminum Load Track Mounting Kit w/ Stud Nut, Tiedown 12-Pack This listing is for Twelve (12) complete mounting kits. The mounting kit fits all aluminum tracking similar to the track shown in the secondary image. The stud kit can be used to attach virtually any item to the aluminum tracking. Drilling a hole in the item/component you wish to attach is all that is required, allowing you to move the item anywhere along the track. There are many names associated with the type of track that receives the stud nut fittings. It's the same track used in the airline industry to secure seats in the fuselage and for cargo control. It's known to be called seat track, s-track, airline track, and aluminum load track to name a few. See the secondary image for dimensions. The fittings' steel components are zinc plated to inhibit corrosion. QUALITY ASSURED - Customer satisfaction is a priority. If you have any installation or product related questions please ask, we are happy to offer advice.