Cylindrical Vibration Isolator, Female Threads Both Ends, Max. Load Downward Compression (Lb.) 720, Max. Load Sideways Shear (Lb.) 140, Cylinder Dia. 3-1/8, Height 2-1/4 In., Rubber, Thread Size 1/2-13, Metric Thread Size -, Compression Mounting, Clear Zinc Plated, Grade 5 Screws, Resistant To Abrasion, Standards -, Includes -