Pipe Pulley Thread Forming

Pipe Pulley Thread Forming

Taper Pipe NPT - For Cast Iron
Taper Pipe NPT - For Cast Iron
Taper Pipe NPT - Spiral Flute
Taper Pipe NPT - Spiral Flute
Thread Forming
Thread Forming
Extension Taper Pipe NPT
Extension Taper Pipe NPT
Pulley Tap
Pulley Tap
Small Shank Extension - Spiral Point Plug
Small Shank Extension - Spiral Point Plug
Straight Pipe - NPS
Straight Pipe - NPS
Taper Pipe - NPTF Dryseal
Taper Pipe - NPTF Dryseal
Taper Pipe - NPTF Dryseal - Interrupted
Taper Pipe - NPTF Dryseal - Interrupted
Taper Pipe NPT
Taper Pipe NPT
Taper Pipe NPT - Interrupted
Taper Pipe NPT - Interrupted

A collection of specialized HSS tap styles for pipe threading, pulley set-screw applications, and chipless thread forming. Available in NPT, NPTF Dryseal, NPS, NC, and NF thread standards.

Thread Forming: Rather than cutting material away, thread forming taps displace it, cold-forming the thread into the hole wall. This produces a stronger thread with no chips to evacuate — ideal for ductile materials and ensures no chip-related jams in blind holes.

Pipe Taps (NPT/NPTF/NPS): Tapered pipe taps cut threads that seal on the taper itself, standard for plumbing and fluid-fitting connections. NPTF Dryseal variants seal without additional sealant; interrupted-thread versions reduce torque and improve chip control in deeper holes.

Pulley Taps: Designed specifically for the shallow, often through-drilled holes used in set-screw applications on pulleys and hubs.

  • Compare SKU Vendor Size Shank Diameter Overall Length H Limit D Limit NC / NF Square Size Square Length Thread Length Number of Lube Grooves Number of Flutes Style Material Coating In Stock Price Quantity
    A77330 ACT 1/2-20 0.3670 3-3/8 H8 None Plug HSS Uncoated 20
    $32.39
  • A77331 ACT 1/2-20 0.3670 3-3/8 H8 None Bottom HSS Uncoated 24
    $32.39
  • A54818 ACT 1-64 0.141 1-11/16 H2 0 Bottoming HSS TiN 7
    $24.38
  • A54819 ACT 1-72 0.141 1-11/16 H2 0 Bottoming HSS TiN 12
    $24.38
  • A77206 ACT 1-72 0.1410 1-11/16 H3 None Single Thread HSS Uncoated 9
    $19.93
  • A77338 ACT 1-64 0.1410 1-11/16 H3 None Bottom HSS Uncoated 29
    $19.93
  • A77339 ACT 1-72 0.1410 1-11/16 H3 None Bottom HSS Uncoated 17
    $19.93
  • A77450 ACT 1-72 0.1410 1-11/16 H3 None Single Thread HSS TiN 6
    $23.56
  • A54820 ACT 2-56 0.141 1-3/4 H2 0 Bottoming HSS TiN 66
    $22.56
  • A54821 ACT 2-56 0.141 1-3/4 H3 0 Bottoming HSS TiN 31
    $22.56
  • A54823 ACT 2-64 0.141 1-3/4 H3 0 Bottoming HSS TiN 6
    $22.56
  • A77207 ACT 2-56 0.1410 1-3/4 H3 None Single Thread HSS Uncoated 33
    $19.67
  • A77208 ACT 2-56 0.1410 1-3/4 H4 None Single Thread HSS Uncoated 25
    $19.67
  • A77340 ACT 2-56 0.1410 1-3/4 H3 None Bottom HSS Uncoated 100
    $19.67
  • A77341 ACT 2-56 0.1410 1-3/4 H4 None Bottom HSS Uncoated 58
    $19.67
  • A77451 ACT 2-56 0.1410 1-3/4 H3 None Single Thread HSS TiN 24
    $21.80
  • A77452 ACT 2-56 0.1410 1-3/4 H4 None Single Thread HSS TiN 11
    $21.80
  • A77479 ACT 2-64 0.1410 1-3/4 H3 None Bottom HSS Uncoated 32
    $19.67
  • A54825 ACT 3-48 0.141 1-13/16 H3 0 Bottoming HSS TiN 8
    $22.56
  • A54826 ACT 3-56 0.141 1-13/16 H2 0 Bottoming HSS TiN 11
    $22.56
  • A54827 ACT 3-56 0.141 1-13/16 H3 0 Bottoming HSS TiN 7
    $22.56
  • A77480 ACT 3-48 0.1410 1-13/16 H3 None Bottom HSS Uncoated 3
    $19.67
  • A77481 ACT 3-56 0.1410 1-13/16 H3 None Bottom HSS Uncoated 17
    $19.67
  • A77482 ACT 3-56 0.1410 1-13/16 H5 None Bottom HSS Uncoated 19
    $19.67
  • A54828 ACT 4-40 0.141 1-7/8 H3 0 Bottoming HSS TiN 72
    $22.02
  • A54829 ACT 4-40 0.141 1-7/8 H5 0 Bottoming HSS TiN 25
    $22.02
  • A54830 ACT 4-48 0.141 1-7/8 H3 0 Bottoming HSS TiN 7
    $22.02
  • A55904 ACT 4-40 0.141 1-7/8 H3 0 Plug HSS TiN 14
    $22.02
  • A55905 ACT 4-40 0.141 1-7/8 H5 0 Plug HSS TiN 6
    $22.02
  • A77209 ACT 4-40 0.1410 1-7/8 H3 None Single Thread HSS Uncoated 80
    $17.70
  • A77210 ACT 4-40 0.1410 1-7/8 H5 None Single Thread HSS Uncoated 67
    $17.70
  • A77453 ACT 4-40 0.1410 1-7/8 H3 None Single Thread HSS TiN 19
    $21.30
  • A77454 ACT 4-40 0.1410 1-7/8 H5 None Single Thread HSS TiN 12
    $21.30
  • A77483 ACT 4-40 0.1410 1-7/8 H3 None Plug HSS Uncoated 50
    $17.70
  • A77484 ACT 4-40 0.1410 1-7/8 H3 None Bottom HSS Uncoated 63
    $17.70
  • A77485 ACT 4-40 0.1410 1-7/8 H5 None Plug HSS Uncoated 66
    $17.70
  • A77486 ACT 4-40 0.1410 1-7/8 H5 None Bottom HSS Uncoated 77
    $17.70
  • A77487 ACT 4-48 0.1410 1-7/8 H4 None Bottom HSS Uncoated 63
    $17.70
  • A54832 ACT 5-40 0.141 1-15/16 H3 0 Bottoming HSS TiN 8
    $22.02
  • A54834 ACT 5-44 0.141 1-15/16 H3 0 Bottoming HSS TiN 5
    $22.02
  • A55908 ACT 5-40 0.141 1-15/16 H3 0 Plug HSS TiN 9
    $22.02
  • A77488 ACT 5-40 0.1410 1-15/16 H4 None Plug HSS Uncoated 30
    $17.70
  • A77489 ACT 5-40 0.1410 1-15/16 H4 None Bottom HSS Uncoated 22
    $17.70
  • A54836 ACT 6-32 0.141 2 H3 1 Bottoming HSS TiN 33
    $19.02
  • A54837 ACT 6-32 0.141 2 H5 1 Bottoming HSS TiN 27
    $19.02
  • A54839 ACT 6-40 0.141 2 H3 1 Bottoming HSS TiN 5
    $19.02
  • A55912 ACT 6-32 0.141 2 H3 1 Plug HSS TiN 17
    $19.02
  • A55913 ACT 6-32 0.141 2 H5 1 Plug HSS TiN 20
    $19.02
  • A55915 ACT 6-40 0.141 2 H3 1 Plug HSS TiN 3
    $19.02
  • A77211 ACT 6-32 0.1410 2 H3 None Single Thread HSS Uncoated 31
    $14.73
  • A77422 ACT 6-32 0.1410 2 H5 None Single Thread HSS Uncoated 44
    $14.73
  • A77455 ACT 6-32 0.1410 2 H3 None Single Thread HSS TiN 61
    $18.37
  • A77456 ACT 6-32 0.1410 2 H5 None Single Thread HSS TiN 17
    $18.37
  • A77490 ACT 6-32 0.1410 2 H3 None Plug HSS Uncoated 41
    $14.73
  • A77491 ACT 6-32 0.1410 2 H3 None Bottom HSS Uncoated 100
    $14.73
  • A77492 ACT 6-32 0.1410 2 H5 None Plug HSS Uncoated 100
    $14.73
  • A77493 ACT 6-32 0.1410 2 H5 None Bottom HSS Uncoated 75
    $14.73
  • A77494 ACT 6-40 0.1410 2 H4 None Bottom HSS Uncoated 30
    $14.73
  • A54841 ACT 8-32 0.168 2-1/8 H3 1 Bottoming HSS TiN 65
    $19.18
  • A54842 ACT 8-32 0.168 2-1/8 H5 1 Bottoming HSS TiN 17
    $19.18
  • A54843 ACT 8-32 0.168 2-1/8 H7 1 Bottoming HSS TiN Available to Order*
    $19.18
  • A54844 ACT 8-36 0.168 2-1/8 H3 1 Bottoming HSS TiN 10
    $19.18
  • A55917 ACT 8-32 0.168 2-1/8 H3 1 Plug HSS TiN 15
    $19.18
  • A55918 ACT 8-32 0.168 2-1/8 H5 1 Plug HSS TiN 17
    $19.18
  • A55919 ACT 8-32 0.168 2-1/8 H7 1 Plug HSS TiN 100
    $19.18
  • A55920 ACT 8-36 0.168 2-1/8 H3 1 Plug HSS TiN 17
    $19.18
  • A77423 ACT 8-32 0.1680 2-1/8 H3 None Single Thread HSS Uncoated 69
    $14.73
  • A77424 ACT 8-32 0.1680 2-1/8 H5 None Single Thread HSS Uncoated 33
    $14.73
  • A77457 ACT 8-32 0.1680 2-1/8 H3 None Single Thread HSS TiN 18
    $18.54
  • A77458 ACT 8-32 0.1680 2-1/8 H5 None Single Thread HSS TiN 26
    $18.54
  • A77495 ACT 8-32 0.1680 2-1/8 H3 None Plug HSS Uncoated 33
    $14.73
  • A77496 ACT 8-32 0.1680 2-1/8 H3 None Bottom HSS Uncoated 32
    $14.73
  • A77497 ACT 8-32 0.1680 2-1/8 H5 None Plug HSS Uncoated 37
    $14.73
  • A77498 ACT 8-32 0.1680 2-1/8 H5 None Bottom HSS Uncoated 18
    $14.73
  • A77499 ACT 8-32 0.1680 2-1/8 H7 None Plug HSS Uncoated 100
    $14.73
  • A77500 ACT 8-32 0.1680 2-1/8 H7 None Bottom HSS Uncoated Available to Order*
    $14.73
  • A77501 ACT 8-36 0.1680 2-1/8 H4 None Plug HSS Uncoated 15
    $14.73
  • A77502 ACT 8-36 0.1680 2-1/8 H4 None Bottom HSS Uncoated 48
    $14.73
  • A54845 ACT 10-24 0.194 2-3/8 H4 1 Bottoming HSS TiN 38
    $17.41
  • A54846 ACT 10-24 0.194 2-3/8 H6 1 Bottoming HSS TiN 23
    $17.41
  • A54847 ACT 10-32 0.194 2-3/8 H4 1 Bottoming HSS TiN 21
    $17.41
  • A54848 ACT 10-32 0.194 2-3/8 H6 1 Bottoming HSS TiN 10
    $17.41
  • A55921 ACT 10-24 0.194 2-3/8 H4 1 Plug HSS TiN 5
    $17.41
  • A55922 ACT 10-24 0.194 2-3/8 H6 1 Plug HSS TiN 12
    $17.41
  • A55923 ACT 10-32 0.194 2-3/8 H4 1 Plug HSS TiN 27
    $17.41
  • A55924 ACT 10-32 0.194 2-3/8 H6 1 Plug HSS TiN 44
    $17.41
  • A77425 ACT 10-32 0.1940 2-3/8 H3 None Single Thread HSS Uncoated 48
    $14.07
  • A77426 ACT 10-32 0.1940 2-3/8 H5 None Single Thread HSS Uncoated 43
    $14.07
  • A77459 ACT 10-32 0.1940 2-3/8 H3 None Single Thread HSS TiN 20
    $16.82
  • A77460 ACT 10-32 0.1940 2-3/8 H5 None Single Thread HSS TiN 7
    $16.82
  • A77503 ACT 10-24 0.1940 2-3/8 H5 None Plug HSS Uncoated 100
    $14.07
  • A77504 ACT 10-24 0.1940 2-3/8 H5 None Bottom HSS Uncoated 100
    $14.07
  • A77505 ACT 10-24 0.1940 2-3/8 H7 None Plug HSS Uncoated 41
    $14.07
  • A77506 ACT 10-24 0.1940 2-3/8 H7 None Bottom HSS Uncoated 58
    $14.07
  • A77507 ACT 10-32 0.1940 2-3/8 H3 None Plug HSS Uncoated 47
    $14.07
  • A77508 ACT 10-32 0.1940 2-3/8 H3 None Bottom HSS Uncoated 86
    $14.07
  • A77509 ACT 10-32 0.1940 2-3/8 H5 None Plug HSS Uncoated 100
    $14.07
  • A77510 ACT 10-32 0.1940 2-3/8 H5 None Bottom HSS Uncoated 52
    $14.07
  • A54849 ACT 12-24 0.22 2-3/8 H4 2 Bottoming HSS TiN 25
    $17.41
  • A54851 ACT 12-28 0.22 2-3/8 H4 2 Bottoming HSS TiN 10
    $17.41

* Lead times can vary from 1–10 business days. Call (908) 98-ATLAS or email sales@atlascuttingtools.com for details.

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