HSS

HSS

Screw & Fractional Size
Screw & Fractional Size
Metric
Metric
Pipe Pulley Thread Forming
Pipe Pulley Thread Forming
Straight Spiral Flute
Straight Spiral Flute

Our standard HSS tap selection covers Screw & Fractional sizing, Metric threads, Pipe & Pulley Thread Forming taps, and Straight Spiral Flute styles for improved chip control. HSS taps remain the standard choice for general-purpose threading work across a wide range of materials and shop setups, from manual tapping to lower-speed machine tapping.

As with the rest of our tap line, every HSS tap is manufactured in the USA using domestic materials, with same-day shipping on in-stock sizes and a 97% fill rate.

  • 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
    A55885 ACT M4 X 0.7 0.168 2-1/8 D6 Bottoming HSS TiN 38
    $19.22
  • A55868 ACT 5/16-24 0.318 2-23/32 H2 4 Hand Plug HSS Uncoated 74
    $19.18
  • A54977 ACT M7 X 1.0 0.318 2-23/32 D5 2 Spiral Point Plug HSS Uncoated 59
    $9.65
  • A54957 ACT M14 X 1.5 0.429 3-19/32 D6 4 Taper, Plug, Bottoming HSS Uncoated 12
    $79.66
  • A54574 ACT 3-56 0.141 1-13/16 H1 2 Spiral Point Plug HSS Uncoated 66
    $11.47
  • A54011 ACT 6-40 0.141 2 H2 3 Taper, Plug, Bottoming HSS Uncoated 11
    $16.79
  • A53940 ACT 4-48 0.141 1-7/8 H2 3 Plug HSS STEAM OXIDE 71
    $7.51
  • A53898 ACT 2-64 0.141 1-3/4 H2 3 Taper HSS Uncoated 30
    $10.56
  • A79058 ACT 3/4-16 0.5900 4-1/4 H3 4 Taper, Plug, Bottoming HSS TiN Available to Order*
    $228.84
  • A77614 ACT 6-40 0.1410 2 H2 2 SP/PT Bottom HSS TiN Available to Order*
    $16.32
  • A77548 ACT M5 x 0.5 0.1940 2-3/8 D3 4 Plug HSS Uncoated Available to Order*
    $10.38
  • A77428 ACT 1/4-20 0.2550 2-1/2 H8 None Single Thread HSS Uncoated Available to Order*
    $14.94
  • A77417 ACT 5/8-18 0.4800 6 H3 3 SP/PT Plug HSS ALTiN Available to Order*
    $135.47
  • A77396 ACT M4 X 0.7 0.1680 2-1/8 D7 None Single Thread HSS TiN Available to Order*
    $18.58
  • A77365 ACT 9/16-18 0.4290 3.5938" H3 4 Semi Bottom HSS ZRN Available to Order*
    $83.70
  • A77193 ACT 7/8-14 0.6970 4-11/16 H4 4 Plug HSS TiN Available to Order*
    $154.43
  • A77192 ACT 7/8-14 0.6970 4-11/16 H4 4 Plug HSS Uncoated Available to Order*
    $146.31
  • A58014 ACT M14 X 1.5 0.429 3-19/32 D6 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $144.26
  • A57963 ACT M8 X 1.25 0.318 2-23/32 D5 4 Plug HSS TIN 11
    $13.49
  • A57889 ACT 10-32 0.194 2-3/8 H3 4 Bottoming HSS TIN 1
    $9.24
  • A57633 ACT 1-11-1/2 1.125 3-3/4 5 NPT HSS STEAM OXIDE 28
    $128.89
  • A57611 ACT M7 X 1.0 0.318 2-23/32 D5 2 Spiral Point Plug HSS TIN 21
    $13.49
  • A55869 ACT 5/16-24 11.141 1-7/19 H2 4 Hand Bottoming HSS Uncoated 24
    $19.18
  • A54575 ACT 3-56 0.141 1-13/16 H2 2 Spiral Point Plug HSS Uncoated 20
    $10.48
  • A54018 ACT 8-32 0.168 2-1/8 H1 4 Taper, Plug, Bottoming HSS Uncoated 19
    $19.09
  • A53943 ACT 4-48 0.141 1-7/8 H2 3 Bottoming HSS STEAM OXIDE 15
    $7.51
  • A53900 ACT 2-64 0.141 1-3/4 H2 3 Plug HSS Uncoated 42
    $10.56
  • A77549 ACT M5 x 0.5 0.1940 2-3/8 D3 4 Bottom HSS Uncoated Available to Order*
    $10.38
  • A77442 ACT M4 x 0.7 0.1680 2-1/8 D7 None Single Thread HSS Uncoated Available to Order*
    $14.77
  • A77429 ACT 1/4-28 0.2550 2-1/2 H4 None Single Thread HSS Uncoated Available to Order*
    $14.94
  • A77216 ACT 3/8-24 0.3810 2-15/16 H3 4 Taper HSS TiN Available to Order*
    $45.78
  • A77194 ACT 7/8-14 0.6970 4-11/16 H4 4 Bottom HSS Uncoated Available to Order*
    $146.31
  • A57986 ACT M8 X 1.25 0.318 2-23/32 D5 4 Bottoming HSS TIN 24
    $13.49
  • A57842 ACT 12-24 0.22 2-3/8 H3 4 Taper HSS TIN 78
    $9.86
  • A55870 ACT 3/8-16 0.381 2-15/16 H3 4 Hand Plug HSS Uncoated 100
    $20.74
  • A55833 ACT 5/8-11 0.48 3-13/16 H3 4 High Spiral HSS Uncoated 22
    $104.07
  • A55061 ACT 3/4-10 0.59 6 H3 NC .442 11/16 2 3 Spiral Point Plug HSS Uncoated 1
    $161.34
  • A54993 ACT 1-1/4-11-1/2 1.3125 4 5 NPT HSS Uncoated 41
    $168.88
  • A54978 ACT M8 X 1.25 0.318 2-23/32 D5 2 Spiral Point Plug HSS Uncoated 100
    $9.65
  • A54958 ACT M14 X 2.0 0.429 3-19/32 D7 4 Taper, Plug, Bottoming HSS Uncoated 15
    $79.66
  • A54726 ACT 8-32 0.168 2-1/8 H2 2 Spiral Point Bottoming HSS Uncoated 22
    $11.55
  • A54576 ACT 3-56 0.141 1-13/16 H2 2 Spiral Point Plug HSS STEAM OXIDE 15
    $11.30
  • A54026 ACT 8-32 0.168 2-1/8 H2 4 Taper, Plug, Bottoming HSS Uncoated 8
    $16.79
  • A53959 ACT 5-40 0.141 1-15/16 H2 3 Taper HSS STEAM OXIDE Available to Order*
    $7.01
  • A53902 ACT 2-64 0.141 1-3/4 H2 3 Bottoming HSS Uncoated 78
    $10.56
  • A77526 ACT M4 X 0.7 0.1680 2-1/8 D7 None Plug HSS Uncoated Available to Order*
    $14.77
  • A77430 ACT 1/4-28 0.2550 2-1/2 H6 None Single Thread HSS Uncoated Available to Order*
    $14.94
  • A77218 ACT 3/8-24 0.3810 2-15/16 H3 4 Plug HSS TiN Available to Order*
    $45.78
  • A77217 ACT 3/8-24 0.3810 2-15/16 H3 4 Plug HSS Uncoated Available to Order*
    $38.21
  • A58015 ACT M14 X 2.0 0.429 3-19/32 D7 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $144.26
  • A57937 ACT M10 X 1.25 0.381 2-15/16 D5 4 Taper HSS TIN 20
    $25.28
  • A57866 ACT 12-24 0.22 2-3/8 H3 4 Plug HSS TIN 19
    $9.86
  • A57636 ACT 1-1/4-11-1/2 1.3125 4 5 NPT HSS TIN 13
    $205.17
  • A57612 ACT M8 X 1.25 0.318 2-23/32 D5 2 Spiral Point Plug HSS TIN 82
    $13.49
  • A55871 ACT 3/8-16 12.141 1-7/20 H3 4 Hand Bottoming HSS Uncoated 21
    $20.74
  • A55834 ACT 5/8-18 0.48 3-13/16 H3 4 High Spiral HSS Uncoated 49
    $104.07
  • A55062 ACT 3/4-16 0.59 6 H3 NF .442 11/16 2 3 Spiral Point Plug HSS Uncoated 16
    $161.34
  • A54889 ACT M6 X 1.0 0.255 2-1/2 D5 4 Taper HSS Uncoated 100
    $7.43
  • A54727 ACT 8-32 0.168 2-1/8 H3 2 Spiral Point Bottoming HSS Uncoated 100
    $11.55
  • A54585 ACT 4-36 0.141 1-7/8 H2 2 Spiral Point Plug HSS Uncoated 100
    $8.54
  • A54039 ACT 8-32 0.168 2-1/8 H3 4 Taper, Plug, Bottoming HSS Uncoated 34
    $16.79
  • A53962 ACT 5-40 0.141 1-15/16 H2 3 Plug HSS STEAM OXIDE 68
    $7.01
  • A53908 ACT 3-48 0.141 1-13/16 H2 3 Taper HSS Uncoated 38
    $7.67
  • A77615 ACT 8-32 0.1680 2-1/8 H2 2 SP/PT Bottom HSS TiN Available to Order*
    $14.94
  • A77527 ACT M4 X 0.7 0.1680 2-1/8 D7 None Bottom HSS Uncoated Available to Order*
    $14.77
  • A77472 ACT M8 x 1.0 0.3180 2.7188" D5 2 SP/PT Plug HSS Uncoated Available to Order*
    $13.35
  • A77461 ACT 1/4-20 0.2550 2-1/2 H5 None Single Thread HSS TiN Available to Order*
    $19.09
  • A77418 ACT 3/4-10 0.5900 6 H3 3 SP/PT Plug HSS ALTiN Available to Order*
    $173.80
  • A77366 ACT 5/8-11 0.4800 3-13/16 H3 4 Semi Bottom HSS ZRN Available to Order*
    $108.93
  • A77220 ACT 3/8-24 0.3810 2-15/16 H3 4 Bottom HSS TiN Available to Order*
    $45.78
  • A77219 ACT 3/8-24 0.3810 2-15/16 H3 4 Bottom HSS Uncoated Available to Order*
    $38.21
  • A57938 ACT M10 X 1.5 0.381 2-15/16 D6 4 Taper HSS TIN 42
    $25.28
  • A57911 ACT 8-32 0.168 2-1/8 H3 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $26.03
  • A57890 ACT 12-24 0.22 2-3/8 H3 4 Bottoming HSS TIN 16
    $9.86
  • A57635 ACT 1-1/4-11-1/2 1.3125 4 5 NPT HSS STEAM OXIDE 21
    $181.54
  • A55872 ACT 3/8-24 0.381 2-15/16 H2 4 Hand Plug HSS Uncoated 30
    $20.74
  • A54959 ACT M16 X 1.5 0.48 3-13/16 D6 4 Taper, Plug, Bottoming HSS Uncoated 6
    $96.98
  • A54890 ACT M6 X 1.0 0.255 2-1/2 D5 4 Plug HSS Uncoated 100
    $7.43
  • A54587 ACT 4-36 0.141 17/8 H2 2 Spiral Point Plug HSS STEAM OXIDE 19
    $6.64
  • A54154 ACT 1/4-20 0.255 2-1/2 H3 4 Bottoming HSS NIT/ST 16
    $6.35
  • A53965 ACT 5-40 0.141 1-15/16 H2 3 Bottoming HSS STEAM OXIDE 71
    $7.01
  • A77616 ACT 8-32 0.1680 2-1/8 H3 2 SP/PT Bottom HSS TiN Available to Order*
    $14.94
  • A77515 ACT 1/4-20 0.2550 2-1/2 H5 None Plug HSS Uncoated Available to Order*
    $14.94
  • A77473 ACT M8 x 1.0 0.3180 2.7188" D5 2 SP/PT Plug HSS TiN Available to Order*
    $17.12
  • A77419 ACT 3/4-16 0.5900 6 H3 3 SP/PT Plug HSS ALTiN Available to Order*
    $173.80
  • A77367 ACT 5/8-18 0.4800 3-13/16 H3 4 Semi Bottom HSS ZRN Available to Order*
    $108.93
  • A77222 ACT 7/16-14 0.3230 3.1563" H3 4 Plug HSS Uncoated Available to Order*
    $47.71
  • A77221 ACT 7/16-14 0.3230 3.1563" H3 4 Taper HSS TiN Available to Order*
    $51.68
  • A57964 ACT M10 X 1.25 0.381 2-15/16 D5 4 Plug HSS TIN 12
    $25.28
  • A57843 ACT 12-28 0.22 2-3/8 H3 4 Taper HSS TIN 13
    $10.60
  • A55886 ACT M5 X 0.8 0.194 2-3/8 D7 Plug HSS TiN 19
    $19.42
  • A55873 ACT 3/8-24 13.141 1-7/21 H2 4 Hand Bottoming HSS Uncoated 16
    $20.74
  • A54994 ACT 1-1/2-11-1/2 1.5 4-1/4 7 NPT HSS Uncoated 21
    $227.55
  • A54891 ACT M6 X 1.0 0.255 2-1/2 D5 4 Bottoming HSS Uncoated 100
    $7.43
  • A54586 ACT 4-36 0.141 1-7/8 H2 2 Spiral Point Plug HSS NIT/ST 32
    $9.49
  • A54151 ACT 1/4-20 0.255 2-1/2 H3 4 Plug HSS NIT/ST 100
    $6.35
  • A54053 ACT 8-36 0.168 2-1/8 H2 4 Taper, Plug, Bottoming HSS Uncoated 17
    $16.79
  • A53906 ACT 3-48 0.141 1-13/16 H2 2 Plug HSS Uncoated 62
    $8.62
  • A77516 ACT 1/4-20 0.2550 2-1/2 H5 None Bottom HSS Uncoated Available to Order*
    $14.94
  • A77224 ACT 7/16-14 0.3230 3.1563" H3 4 Bottom HSS Uncoated Available to Order*
    $47.71

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

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