... plated bezel, brass bezel, steelroll ring (or bayonet threaded ring), type: snap on, roll ringTUBE&SOCKET: steel ... steelCONNECTION:1/8", 1/4", 1/2", 3/8", NPT, BSP or BSPT dependent on model & size. Bottom, ... plated bezel, brass bezel, steelroll ring (or bayonet threaded ring), type: snap on, roll ringTUBE&SOCKET: ... :1/8", 1/4", 1/2", 3/8", NPT, BSP or BSPT dependent on model & size. Bottom, ...