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)
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