Stake Rack Corner Connector set, Inside or Outside Mount - Zinc Plated - 2 Corners Easily and securely connect and disconnect panels on a trailer or truck Includes 12 spacers that allow connection on the inside corner of panels and sideboards - Works great for thicker panel materials 4 Pc. set connects 2 corners, Heavy duty zinc plated steel 3-5/8" length to inside of angle, 11/32" holes allow mounting with 5/16" hardware Mounting hardware required (not included)