Round U-Bolts 1-1/2 inch 38mm M6 Inner Width 304 M6x38mm 4 Sets(Round)
Groove Width: 38mm / 1-1/2″. Perfectly Suitable for Round Tube Size 38mm(1-1/2″). M6 Self-locking Hex Nuts Thread Length: 28mm. With Corresponding Flat Gaskets. Surface Color: Silver. Drill Holes in the Connection 3.