Image NT-Series Japanese Hydraulic Female Threaded Plug Markets Agriculture & Forestry Product Options Part Number Body Size Length Maximum OD Thread Thread Size Female Thread Female Thread Size Material NT2BTF2 1/4" 1.41" 0.82" BSPT 1/4"-19 BSPT 1/4" Steel NT3BTF3 3/8" 1.66" 0.98" BSPT 3/8"-19 BSPT 3/8" Steel