Cylindrical Vibration Isolator Vibration Isolator Style Two Tapped Holes Maximum Load Downward Compression 170 lbf Overall Diameter 1.5 in Height 1 in Maximum Load Sideways Shear 40 lbf Thread Size 5/16 In.-18 Isolator Material Rubber Mounting Compression Resistant To Abrasion Stud or Tap Material Grade 5 Yellow Zinc Plated