Universal Compatibility: Wooden bed rail fasteners used for all sizes bed frames, bed posts, bed rails, bunk beds, headboards and footboards or to repair old wooden frames. High Quality: These bed rail brackets are made of sturdy and durable rust-resistant galvanized steel with thick steel plates, which can bear more weight. Easy Installation: The built-in screws can be locked tightly, making the bed rails and posts fit together perfectly and give them a neat look. Best choice for joining and fastening wooden bed frames together or other woodworking projects. Dimensions: Mounting brackets: 86 x 28 x 28mm. Plates: 90 x 32 x 0.5mm. Mounting screw: Length: 14mm; Diameter: 13 mm. Contents: 4 pairs of high-quality bed rail mounting brackets, 32 screws