discount 70% in 2018-09-17 to 2018-09-19
price: USD$ 47.60
freight :USD$7.00,(Postal parcel)
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TPT is a cone (inclined tooth) pipe thread tap, used for taper thread machining of pipe material.
NPT is the American taper pipe tapper, tooth type 60 degree angle of the taper 1:16. In the ANSI (national standard) specifications, known as the American Standard Pipe taper thread, is a general purpose tapered pipe threads, processing used in American standard taper thread in general. The application of this product is very broad. External thread and internal thread.NPT outer thread can not fit NPT internal thread, and sometimes can match NPSC, which is similar to PT (R).
PT is an inch taper pipe thread tap, 55 degree tooth angle thread, Hui thread family, thread sealing combination (taper thread and taper thread combination, abbreviation cone / cone fit), and the other is taper thread with parallel female thread.