The Kupo Brass Hex Stud is designed to be used with the Kupo Convi Clamp System. One side has a 1/4"-20 male thread and the other has a 3/8"-16 male thread.
WE SHIP IN 1 BUSINESS DAY and we package professionally and will combine to save on shipping costs. We are also interested in BUYING your photographic equipment as well. Contact us through Ebay Messaging. We are Camera Exchange in Waterford Michigan.