Simpson Strong-Tie DSP 18-Gauge Galvanized Double-Stud Plate Tie. The stud plate tie series offers various solutions for connecting the stud to the top and bottom plates. DSP double-stud plate ties connect double studs to top and bottom track and can be used for either top- or bottom-track applications. For sill plate installation, fill all round holes. For top plate installation, fill all round holes and triangle holes. G90 galvanized for extra corrosion resistance.