Cylindrical Vibration Isolator Vibration Isolator Style One Tapped Hole and One Threaded Stud Maximum Load Downward Compression 80 lbf Overall Diameter 1.38 in Height 1 in Stud Length 0.63 in Maximum Load Sideways Shear 15 lbf Thread Size 5/16 In.-18 Includes - Isolator Material Rubber Mounting Compression Resistant To Abrasion Stud or Tap Material Grade 5 Yellow Zinc Plated