... coupler thread: BSPT,BSP,NPT 4.Quick coupler stainless steel quick coupler adaptor male F/ adaptor male F quick coupler/pipe male threaded adaptor ... and machining. 3. Shipping port: Qingdao, China. 4. Thread: BSPT,BSP,NPT 5. Size: 1/2" 3/4" ... and machining. 3. Shipping port: Qingdao, China. 4. Thread: BSPT,BSP,NPT 5. Size: 1/2" 3/4" ... each in stock. stainless steel quick coupler adaptor male F SS316