Cylindrical Vibration Isolator, Vibration Isolator Style Two Threaded Studs, Maximum Load Downward Compression 50 lbf, Overall Diameter 1 in, Height 3/4 in, Stud Length 0.63 in, Maximum Load Sideways Shear 9 lbf, Thread Size 5/16 In.-18, Isolator Material Rubber, Mounting Compression, To Abrasion, Stud or Tap Material Grade 5, Yellow Zinc Plated