Ruland Collar, One Piece, Clamp Screw, Bore 50mm, OD 78mm, W 19mm, 1215 Lead-Free Carbon Steel - FHT-MCL-50-F
This Ruland one piece clamp screw collar is made from lead-free carbon steel and fits a 50mm shaft diameter.
Manufacturer part number: FHT-MCL-50-F