Cylindrical Vibration Isolator, Vibration Isolator Style One Threaded Stud, Maximum Load Downward Compression 60 lbf, Overall Diameter 1 in, Height 0.63 in, Stud Length 0.63 in, Thread Size 5/16 In.-18, Includes -, Isolator Material Rubber, Mounting Compression, To Abrasion, Stud or Tap Material Clear Zinc Plated, Grade 5