5/16-18 x 3/8 Tee Nut 3 Prong Zinc Plated

5/16-18 x 3/8 Tee Nut 3 Prong Zinc Plated . 3 Prong type of nut used to fasten to wood, particle or composite materials, leaving a flush surface. Low Carbon Steel is zinc plated for moderate protection against rust.