Standard Pack = 1 piece(s). Attachment Type = TN ; Color = Black ; Converted Form = Backup Pads, Disc ; Density Rating = Hard ; Diameter(Inch) = 4.5 ; Diameter (Metric) = 114.3 ; Form Type = Quick Change ; Harmonizing Code = 8467990190 ; Max RPM = 13300 ; Product Form = Pad ; Thread Size = 5/8-11 INT ; Type = Retainer Nut ; 3M Stock Number = 7000045746 ;