Camlock/Quick/Chicago coupling, cam & groove coupling Material: aluminium, stainless steel 316, stainless steel 304, Sizes: 1/ 2" to 6" Thread: NPT, BSPP, BSPT Camlock coupling: Gravity casting/ Die casting/ investment casting Pins, Rings and Safety clip material: Carbon steel plated or stainless steel Handle material: Brass or stainless steel Seal: NBR, BUNA, EPDM, VITON