National Taper Pipe (NPT) Threads

  • Inserts are with neutral cutting edge or Positive 5 degree cutting edge (P) for soft materials and threadmilling deep holes
  • Coatings available include - Uncoated (-), TiN (C), TiAIN (Z), AlTiN (V)
  • Dimensions shown in Inches



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Item # Thread Form Pitch Flank Angle Rake Angle Clearance Angle Insert Size List Price
ATM-38B115NPT

Standard Taper Pipe (NPT)

11.5

60

Neutral

10

38B

ATM-38B115NPTC

Standard Taper Pipe (NPT)

11.5

60

Neutral

10

38B

ATM-38B115NPTP

Standard Taper Pipe (NPT)

11.5

60

Positive

10

38B

ATM-38B115NPTPC

Standard Taper Pipe (NPT)

11.5

60

Positive

10

38B

ATM-38B115NPTPV

Standard Taper Pipe (NPT)

11.5

60

Positive

10

38B

ATM-38B115NPTPZ

Standard Taper Pipe (NPT)

11.5

60

Positive

10

38B

ATM-38B115NPTV

Standard Taper Pipe (NPT)

11.5

60

Neutral

10

38B

ATM-38B115NPTZ

Standard Taper Pipe (NPT)

11.5

60

Neutral

10

38B

ATM-38B14NPT

Standard Taper Pipe (NPT)

14

60

Neutral

10

38B

ATM-38B14NPTC

Standard Taper Pipe (NPT)

14

60

Neutral

10

38B

ATM-38B14NPTP

Standard Taper Pipe (NPT)

14

60

Positive

10

38B

ATM-38B14NPTPC

Standard Taper Pipe (NPT)

14

60

Positive

10

38B

ATM-38B14NPTPV

Standard Taper Pipe (NPT)

14

60

Positive

10

38B

ATM-38B14NPTPZ

Standard Taper Pipe (NPT)

14

60

Positive

10

38B

ATM-38B14NPTV

Standard Taper Pipe (NPT)

14

60

Neutral

10

38B

ATM-38B14NPTZ

Standard Taper Pipe (NPT)

14

60

Neutral

10

38B

ATM-38B18NPT

Standard Taper Pipe (NPT)

18

60

Neutral

10

38B

ATM-38B18NPTC

Standard Taper Pipe (NPT)

18

60

Neutral

10

38B

ATM-38B18NPTP

Standard Taper Pipe (NPT)

18

60

Positive

10

38B

ATM-38B18NPTPC

Standard Taper Pipe (NPT)

18

60

Positive

10

38B

ATM-38B18NPTPV

Standard Taper Pipe (NPT)

18

60

Positive

10

38B

ATM-38B18NPTPZ

Standard Taper Pipe (NPT)

18

60

Positive

10

38B

ATM-38B18NPTV

Standard Taper Pipe (NPT)

18

60

Neutral

10

38B

ATM-38B18NPTZ

Standard Taper Pipe (NPT)

18

60

Neutral

10

38B

ATM-38B8NPT

Standard Taper Pipe (NPT)

8

60

Neutral

10

38B