Thread tap

1 Name

pipe thread tap, water pipe tap

2 material

high speed steel (HSS)

3 units

a branch

4 specification:

divided into G represents cylinder pipe thread [55 degree]

ZG stands for conical pipe threads [55 degrees]

Z stands for conical pipe threads [60 degrees]

5 purpose

reaming pipe fittings and internal thread of general machinery.

The 6-pipe thread taps are G, Z, ZG, NPT, RC, RP, PT, PF, NPS, NPSM, NPSF, NPTF, BSPT and other models. The most commonly used pipe thread tap old mark: G, Z, ZG, the most commonly used pipe thread tap new mark: NPT, RC new standard. Among them, RC=ZG, NPT=Z, PF (Japanese standard) =G can be used.

1 pipe ---1/8 (outer diameter 9.73)

2 pipe ---1/4 (outer diameter 13.16 or so)

3 pipe ---3/8 (outer diameter 16.66)

4 pipe ---1/2 (outer diameter 20.96 or so)

6 in charge of ---3/4 (outer diameter 26.44)

8 pipe ---1 "(outer diameter 33.25 or so)