NPT1/2'' lock nut 1.material:Stainless steel 2.thread type:NPT1/2''-NPT6'' 3.high quality 4.free samples NPT1/2'' lock nutMaterial:nickel plated brass,stainless steelTread type:M14*1.5~M72*2.0,G3/8''~G2'',NPT1/2''~NPT6''About us:KT-Flex Co., Ltd mainly deals in developing and manufacturing high quality liquid-tight flexible conduits and metal hose, conduit fittings, as it has been for over 10 ...