Many ProMaster tripods and monopods use a reversible platform bolt which can be flipped over to expose either a 3/8"-16 or 1/4"-20 mounting post. 4014 is a replacement for this bolt if it is lost.
Many ProMaster tripods and monopods use a reversible platform bolt which can be flipped over to expose either a 3/8"-16 or 1/4"-20 mounting post. 4014 is a replacement for this bolt if it is lost.