The Filmtools Barrel Adapter - 3/8-16 & 1/4-20 – Male to Male comes with one cnc fluted cylinder aka barrel adapter that has a 1/4-20" threaded hole on one side and a 3/8-16" threaded hole on the other side, plus a 1/4-20 and 3/8-16 stainless steel set screw. With this combination you can convert 1/4-20 to 3/8 or vice-a-versa. We recommend using Lock-Tight on the set screws. (note: only one cylinder, one 1/4-20 stainless steel screw and one 3/8-16 stainless steel screw are included)
WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.