Mount accessories onto a 1.25" speedrail with this Houdini Male Speedrail Clamp from Cinemilled. The durable clamp features a 1.25" opening and provides male mounting holes on the base to connect optional accessories onto a speedrail. This male version of the clamp is compatible with the Cinemilled Hitch Mount. It also features 1/4"-20 and 3/8"-16 holes for a variety of mounting pin options.