Cylindrical Vibration Isolator Vibration Isolator Style One Tapped Hole and One Threaded Stud Maximum Load Downward Compression 720 lbf Overall Diameter 3.13 in Height 2 1/4 in Stud Length 1.25 in Maximum Load Sideways Shear 140 lbf Thread Size 1/2 In.-13 Includes - Isolator Material Rubber Mounting Compression Resistant To Abrasion Stud or Tap Material Grade 5 Yellow Zinc Plated