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
    A57911 ACT 8-32 0.168 2-1/8 H3 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $25.64
  • A57890 ACT 12-24 0.22 2-3/8 H3 4 Bottoming HSS TIN 16
    $10.19
  • A57658 ACT 1-1/2-11-1/2 1.5 4-1/4 7 NPT - Interrupted HSS TIN Available to Order*
    $286.96
  • A57635 ACT 1-1/4-11-1/2 1.3125 4 5 NPT HSS STEAM OXIDE 19
    $187.89
  • A55872 ACT 3/8-24 0.381 2-15/16 H2 4 Hand Plug HSS Uncoated 30
    $21.48
  • A54959 ACT M16 X 1.5 0.48 3-13/16 D6 4 Taper, Plug, Bottoming HSS Uncoated 5
    $100.35
  • A54890 ACT M6 X 1.0 0.255 2-1/2 D5 4 Plug HSS Uncoated 100
    $7.67
  • A54587 ACT 4-36 0.141 17/8 H2 2 Spiral Point Plug HSS STEAM OXIDE 19
    $6.89
  • A54154 ACT 1/4-20 0.255 2-1/2 H3 4 Bottoming HSS NIT/ST 16
    $6.56
  • A53965 ACT 5-40 0.141 1-15/16 H2 3 Bottoming HSS STEAM OXIDE 71
    $7.26
  • A79060 ACT 7/8-14 0.6970 4-11/16 H4 4 Taper, Plug, Bottoming HSS TiN 4
    $333.39
  • A77616 ACT 8-32 0.1680 2-1/8 H3 2 SP/PT Bottom HSS TiN 6
    $14.94
  • A77582 ACT 2-3/4-8 2.3500 9-1/4 H8 6 Bottom HSS Uncoated 15
    $1,021.34
  • A77515 ACT 1/4-20 0.2550 2-1/2 H5 None Plug HSS Uncoated 71
    $14.94
  • A77473 ACT M8 x 1.0 0.3180 2.7188" D5 2 SP/PT Plug HSS TiN 12
    $17.12
  • A77419 ACT 3/4-16 0.5900 6 H3 3 SP/PT Plug HSS ALTiN 9
    $173.80
  • A77367 ACT 5/8-18 0.4800 3-13/16 H3 4 Semi Bottom HSS ZRN 8
    $108.93
  • A77222 ACT 7/16-14 0.3230 3.1563" H3 4 Plug HSS Uncoated 100
    $47.71
  • A77221 ACT 7/16-14 0.3230 3.1563" H3 4 Taper HSS TiN 15
    $51.68
  • A57964 ACT M10 X 1.25 0.381 2-15/16 D5 4 Plug HSS TIN 12
    $26.13
  • A57843 ACT 12-28 0.22 2-3/8 H3 4 Taper HSS TIN 13
    $10.97
  • A55886 ACT M5 X 0.8 0.194 2-3/8 D7 Plug HSS TiN 19
    $20.08
  • A55873 ACT 3/8-24 13.141 1-7/21 H2 4 Hand Bottoming HSS Uncoated 15
    $21.48
  • A55014 ACT 2-11-1/2 1.875 4-1/2 7 NPT - Interrupted HSS Uncoated 4
    $353.42
  • A54994 ACT 1-1/2-11-1/2 1.5 4-1/4 7 NPT HSS Uncoated 15
    $235.50
  • A54891 ACT M6 X 1.0 0.255 2-1/2 D5 4 Bottoming HSS Uncoated 100
    $7.67
  • A54586 ACT 4-36 0.141 1-7/8 H2 2 Spiral Point Plug HSS NIT/ST 32
    $9.82
  • A54151 ACT 1/4-20 0.255 2-1/2 H3 4 Plug HSS NIT/ST 100
    $6.56
  • A54053 ACT 8-36 0.168 2-1/8 H2 4 Taper, Plug, Bottoming HSS Uncoated 17
    $17.36
  • A53906 ACT 3-48 0.141 1-13/16 H2 2 Plug HSS Uncoated 62
    $8.91
  • A79042 ACT 1-8 0.8000 5.1250 H4 4 Taper, Plug, Bottoming HSS Uncoated 10
    $352.52
  • A77572 ACT 2-8 1.6440 7-5/8 H6 6 Plug HSS Uncoated 7
    $518.46
  • A77516 ACT 1/4-20 0.2550 2-1/2 H5 None Bottom HSS Uncoated 100
    $14.94
  • A77224 ACT 7/16-14 0.3230 3.1563" H3 4 Bottom HSS Uncoated 100
    $47.71
  • A77223 ACT 7/16-14 0.3230 3.1563" H3 4 Plug HSS TiN 10
    $51.68
  • A57965 ACT M10 X 1.5 0.381 2-15/16 D6 4 Plug HSS TIN 21
    $26.13
  • A57867 ACT 12-28 0.22 2-3/8 H3 4 Plug HSS TIN 3
    $10.97
  • A57659 ACT 2-11-1/2 1.875 4-1/2 7 NPT - Interrupted HSS STEAM OXIDE 10
    $524.41
  • A57638 ACT 1-1/2-11-1/2 1.5 4-1/4 7 NPT HSS TIN 12
    $266.84
  • A55887 ACT M5 X 0.8 0.194 2-3/8 D7 Bottoming HSS TiN 17
    $20.08
  • A55874 ACT 7/16-14 0.323 3-5/32 H3 4 Hand Plug HSS Uncoated 20
    $29.57
  • A55835 ACT 3/4-10 0.59 4-1/4 H3 4 High Spiral HSS Uncoated 23
    $137.79
  • A55045 ACT 6-32 0.097 6 H3 NC .073 3/16 11/16 2 Spiral Point Plug HSS Uncoated 32
    $58.39
  • A54979 ACT M10 X 1.5 0.381 2-15/16 D6 3 Spiral Point Plug HSS Uncoated 100
    $16.61
  • A54960 ACT M16 X 2.0 0.48 3-13/16 D7 4 Taper, Plug, Bottoming HSS Uncoated 10
    $100.35
  • A54892 ACT M7 X 1.0 0.318 2-23/32 D5 4 Taper HSS Uncoated 36
    $7.67
  • A54728 ACT 10-24 0.194 2-3/8 H2 2 Spiral Point Bottoming HSS Uncoated 100
    $13.69
  • A54577 ACT 4-40 0.141 1-7/8 H1 2 Spiral Point Plug HSS Uncoated 19
    $8.82
  • A54175 ACT 1/4-28 0.255 2-1/2 H3 4 Bottoming HSS NIT/ST 7
    $6.56
  • A54058 ACT 10-24 0.194 2-3/8 H1 4 Taper, Plug, Bottoming HSS Uncoated 10
    $17.36
  • A53910 ACT 3-48 0.141 1-13/16 H2 3 Plug HSS Uncoated 41
    $7.95
  • A79043 ACT 1-14 0.8000 5.1250 H4 4 Taper, Plug, Bottoming HSS Uncoated 4
    $352.52
  • A77573 ACT 2-8 1.6440 7-5/8 H6 6 Bottom HSS Uncoated 7
    $518.46
  • A77517 ACT 1/4-20 0.2550 2-1/2 H8 None Plug HSS Uncoated 24
    $14.94
  • A77402 ACT 6-32 0.0970 6 H3 2 SP/PT Plug HSS ALTiN 17
    $60.43
  • A77397 ACT M5 X 0.8 0.1940 2-3/8 D8 None Single Thread HSS TiN 36
    $18.79
  • A77226 ACT 7/16-20 0.3230 3.1563" H3 4 Taper HSS Uncoated 100
    $47.71
  • A77225 ACT 7/16-14 0.3230 3.1563" H3 4 Bottom HSS TiN 11
    $51.68
  • A57988 ACT M10 X 1.5 0.381 2-15/16 D6 4 Bottoming HSS TIN 16
    $26.13
  • A58017 ACT M16 X 2.0 0.48 3-13/16 D7 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $173.29
  • A57891 ACT 12-28 0.22 2-3/8 H3 4 Bottoming HSS TIN 21
    $10.97
  • A57637 ACT 1-1/2-11-1/2 1.5 4-1/4 7 NPT HSS STEAM OXIDE 100
    $252.07
  • A57613 ACT M10 X 1.5 0.381 2-15/16 D6 3 Spiral Point Plug HSS TIN 100
    $23.25
  • A55875 ACT 7/16-14 14.141 1-7/22 H3 4 Hand Bottoming HSS Uncoated 53
    $29.57
  • A55836 ACT 3/4-16 0.59 4-1/4 H3 4 High Spiral HSS Uncoated 21
    $137.79
  • A54893 ACT M7 X 1.0 0.318 2-23/32 D5 4 Plug HSS Uncoated 100
    $7.67
  • A54729 ACT 10-24 0.194 2-3/8 H3 2 Spiral Point Bottoming HSS Uncoated 89
    $11.96
  • A54578 ACT 4-40 0.141 1-7/8 H2 2 Spiral Point Plug HSS Uncoated 100
    $7.75
  • A54172 ACT 1/4-28 0.255 2-1/2 H3 4 Plug HSS NIT/ST 31
    $6.56
  • A54065 ACT 10-24 0.194 2-3/8 H2 4 Taper, Plug, Bottoming HSS Uncoated 8
    $17.36
  • A79061 ACT 1-14 0.8000 5.1250 H4 4 Taper, Plug, Bottoming HSS TiN 2
    $412.30
  • A77583 ACT 3-8 2.5430 9-3/4 H8 6 Taper HSS Uncoated 13
    $1,316.81
  • A77518 ACT 1/4-20 0.2550 2-1/2 H8 None Bottom HSS Uncoated 100
    $14.94
  • A77474 ACT M10 x 1.25 0.3810 2-15/16 D5 3 SP/PT Plug HSS Uncoated 5
    $15.48
  • A77443 ACT M5 x 0.8 0.1940 2-3/8 D8 None Single Thread HSS Uncoated 80
    $14.77
  • A77368 ACT 3/4-10 0.5900 4-1/4 H3 4 Semi Bottom HSS ZRN 21
    $146.89
  • A77228 ACT 7/16-20 0.3230 3.1563" H3 4 Plug HSS Uncoated 100
    $47.71
  • A77227 ACT 7/16-20 0.3230 3.1563" H3 4 Taper HSS TiN 7
    $51.68
  • A77172 ACT M10 X 1.25 0.3810 2-15/16 D5 4 Bottom HSS TiN 13
    $24.44
  • A57844 ACT 1/4-20 0.255 2-1/2 H3 4 Taper HSS TIN 24
    $10.39
  • A55876 ACT 7/16-20 0.323 3-5/32 H3 4 Hand Plug HSS Uncoated 49
    $29.57
  • A55046 ACT 8-32 0.123 6 H3 NC .092 1/4 3/4 2 Spiral Point Plug HSS Uncoated 21
    $57.19
  • A54995 ACT 2-11-1/2 1.875 4-1/2 7 NPT HSS Uncoated 14
    $320.44
  • A54961 ACT M18 X 1.5 0.542 4-1/32 D6 4 Taper, Plug, Bottoming HSS Uncoated 12
    $135.61
  • A54894 ACT M7 X 1.0 0.318 2-23/32 D5 4 Bottoming HSS Uncoated 100
    $7.67
  • A54730 ACT 10-32 0.194 2-3/8 H2 2 Spiral Point Bottoming HSS Uncoated 100
    $11.96
  • A54580 ACT 4-40 0.141 1-7/8 H2 2 Spiral Point Plug HSS STEAM OXIDE 68
    $8.50
  • A54197 ACT 5/16-18 0.318 2-23/32 H3 4 Bottoming HSS NIT/ST 28
    $8.09
  • A54078 ACT 10-24 0.194 2-3/8 H3 4 Taper, Plug, Bottoming HSS Uncoated 24
    $17.36
  • A53985 ACT 6-32 0.141 2 H2 3 Taper HSS STEAM OXIDE 37
    $5.99
  • A53912 ACT 3-48 0.141 1-13/16 H2 3 Bottoming HSS Uncoated 78
    $7.95
  • A79023 ACT 6-32 0.1410 2 H2 3 Taper, Plug, Bottoming HSS Uncoated 2
    $29.35
  • A77584 ACT 3-8 2.5430 9-3/4 H8 6 Plug HSS Uncoated 12
    $1,316.81
  • A77528 ACT M5 X 0.8 0.1940 2-3/8 D8 None Plug HSS Uncoated 80
    $14.77
  • A77475 ACT M10 x 1.25 0.3810 2-15/16 D5 3 SP/PT Plug HSS TiN 9
    $19.83
  • A77403 ACT 8-32 0.1230 6 H3 2 SP/PT Plug HSS ALTiN 12
    $59.27
  • A77230 ACT 7/16-20 0.3230 3.1563" H3 4 Bottom HSS Uncoated 85
    $47.71
  • A77229 ACT 7/16-20 0.3230 3.1563" H3 4 Plug HSS TiN 7
    $51.68
  • A58018 ACT M18 X 1.5 0.542 4-1/32 D6 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $233.89
  • A57939 ACT M12 X 1.25 0.367 3-3/8 D5 4 Taper HSS TIN 16
    $30.80

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

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