Aluminium camlock coupling, cam & groove coupling, quick coupling Material: Brass, aluminum, stainless steel 316, stainless steel 304, nylon, polypropylene(PP) Sizes: 1/2" to 8" Spce: A B C D E F DC DP FC FA Thread: NPT, BSPP, BSPT Type A: Male adapter x female, type B: Female coupler x male, type C: Female coupler x hose shank, type D: Female coupler x female, type E: Male adapter x hose, type F: Male adapter x male, type DC: Dust cap, type DP: Dust plug Camlock coupling: Gravity casting/Die casting Pins, Rings and Safety clip material: Carbon steel plated or stainless steel Handle material: Brass or stainless steel Seal: NBR, BUNA, EPDM, VITON Standard: A-A-59326 (previously called MIL-C-27487) or DIN 2828.