... 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 ... fittings have been used in electric power plant, industrial facilities, wire harnesses, machine , instrumentation, telecommunication equipment, and automobiles etc. NPT1 ...