Manfrotto Round Column Retainer

SKU:004017
Part #: R028,93
Part condition: NEW
Substitute part: USED R028,93

This part also fits:058 ver 4, 058B ver 4,

This part fits the round center column with the attached, external gear teeth. Often the inside of the column is threaded for the oldest screw in plug with an inside diameter of about 25mm.