Calumet Short Stud with 3/8 and 1/4 Inch Threads - Female

This spiggot adapts all 3/8 ""-16 or 1/4"" -20 threaded screws to a 5/8 ""bore connector and is also the replacement bolt for the Calumet umbrella tilt.

Price: 3.00 from Wex Photo Video