... mouth top beam clamp,casting beam clamp,universal beam clamp. size :M8,M10,M12 are available. malleable iron.black,plain wide mouth beam clamp,casting beam clamp,universal beam clamp.size ... :M8,M10,M12,M14 are available.malleable iron.black,plain,zinc plated Designed load of cast steel clamp ... or samples6)Designed load of cast steel clamp: 3.7kN