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
    A57912 ACT 10-24 0.194 2-3/8 H3 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $26.60
  • A57868 ACT 1/4-20 0.255 2-1/2 H3 4 Plug HSS TIN 27
    $10.39
  • A57640 ACT 2-11-1/2 1.875 4-1/2 7 NPT HSS TIN 9
    $387.48
  • A55877 ACT 7/16-20 15.141 1-7/23 H3 4 Hand Bottoming HSS Uncoated 24
    $29.57
  • A55807 ACT 3-48 0.141 1-13/16 H2 2 High Spiral HSS Uncoated 20
    $26.55
  • A54895 ACT M8 X 1.25 0.318 2-23/32 D5 4 Taper HSS Uncoated 100
    $7.67
  • A54857 ACT 5/16-18 0.318 2-23/32 H5 2 Bottoming HSS TiN 25
    $22.68
  • A54731 ACT 10-32 0.194 2-3/8 H3 2 Spiral Point Bottoming HSS Uncoated 39
    $11.96
  • A54579 ACT 4-40 0.141 1-7/8 H2 2 Spiral Point Plug HSS NIT/ST 74
    $8.74
  • A54194 ACT 5/16-18 0.318 2-23/32 H3 4 Plug HSS NIT/ST 32
    $8.09
  • A53988 ACT 6-32 0.141 2 H2 3 Plug HSS STEAM OXIDE 100
    $5.99
  • A53915 ACT 3-56 0.141 1-13/16 H2 3 Taper HSS Uncoated 59
    $8.82
  • A79044 ACT 6-32 0.1410 2 H2 3 Taper, Plug, Bottoming HSS TiN 3
    $41.80
  • A77617 ACT 10-24 0.1940 2-3/8 H2 2 SP/PT Bottom HSS TiN 5
    $17.28
  • A77585 ACT 3-8 2.5430 9-3/4 H8 6 Bottom HSS Uncoated 19
    $1,316.81
  • A77529 ACT M5 X 0.8 0.1940 2-3/8 D8 None Bottom HSS Uncoated 100
    $14.77
  • A77232 ACT 1/2-13 0.3670 3-3/8 H3 4 Taper HSS Uncoated 19
    $49.72
  • A77231 ACT 7/16-20 0.3230 3.1563" H3 4 Bottom HSS TiN 19
    $51.68
  • A57940 ACT M12 X 1.75 0.367 3-3/8 D6 4 Taper HSS TIN 9
    $30.80
  • A57892 ACT 1/4-20 0.255 2-1/2 H3 4 Bottoming HSS TIN 63
    $10.39
  • A57639 ACT 2-11-1/2 1.875 4-1/2 7 NPT HSS STEAM OXIDE 9
    $334.83
  • A55878 ACT 1/2-13 0.367 3-3/8 H3 4 Hand Plug HSS Uncoated 22
    $33.28
  • A55808 ACT 3-56 0.141 1-13/16 H2 2 High Spiral HSS Uncoated 16
    $26.55
  • A55255 ACT 4-40 0.141 1-7/8 H2 2 Spiral Point Plug HSS TIN 82
    $12.29
  • A55047 ACT 10-24 0.136 6 H3 NC .102 1/4 7/8 2 Spiral Point Plug HSS Uncoated 55
    $53.64
  • A54980 ACT M12 X 1.75 0.367 3-3/8 D6 3 Spiral Point Plug HSS Uncoated Available to Order*
    $20.87
  • A54962 ACT M18 X 2.5 0.542 4-1/32 D7 4 Taper, Plug, Bottoming HSS Uncoated 9
    $135.61
  • A54896 ACT M8 X 1.25 0.318 2-23/32 D5 4 Plug HSS Uncoated 100
    $7.67
  • A54858 ACT 5/16-18 0.318 2-23/32 H7 2 Bottoming HSS TiN 14
    $22.68
  • A54089 ACT 10-32 0.194 2-3/8 H1 4 Taper, Plug, Bottoming HSS Uncoated 21
    $17.36
  • A53991 ACT 6-32 0.141 2 H2 3 Bottoming HSS STEAM OXIDE 20
    $5.99
  • A53916 ACT 3-56 0.141 1-13/16 H2 3 Plug HSS Uncoated 18
    $8.82
  • A79024 ACT 8-32 0.1680 2-1/8 H3 4 Taper, Plug, Bottoming HSS Uncoated 20
    $29.35
  • A77618 ACT 10-24 0.1940 2-3/8 H3 2 SP/PT Bottom HSS TiN 19
    $15.36
  • A77420 ACT 3-48 0.1410 1-13/16 H2 2 Semi Bottom HSS ZRN 10
    $30.17
  • A77234 ACT 1/2-13 0.3670 3-3/8 H3 4 Plug HSS Uncoated 29
    $49.72
  • A77233 ACT 1/2-13 0.3670 3-3/8 H3 4 Taper HSS TiN 20
    $53.69
  • A58019 ACT M18 X 2.5 0.542 4-1/32 D7 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $233.89
  • A57966 ACT M12 X 1.25 0.367 3-3/8 D5 4 Plug HSS TIN 17
    $30.80
  • A57845 ACT 1/4-28 0.255 2-1/2 H3 4 Taper HSS TIN 12
    $10.39
  • A57614 ACT M12 X 1.75 0.367 3-3/8 D6 3 Spiral Point Plug HSS TIN 36
    $28.37
  • A55888 ACT M6 X 1.0 0.255 2-1/2 D8 Plug HSS TiN Available to Order*
    $21.36
  • A55879 ACT 1/2-13 16.141 1-7/24 H3 4 Hand Bottoming HSS Uncoated 46
    $33.28
  • A55189 ACT 4-40 0.141 1-7/8 H2 2 Spiral Point Plug HSS ALTiN 12
    $13.07
  • A55048 ACT 10-32 0.136 6 H3 NF .102 1/4 7/8 2 Spiral Point Plug HSS Uncoated Available to Order*
    $53.64
  • A54897 ACT M8 X 1.25 0.318 2-23/32 D5 4 Bottoming HSS Uncoated 61
    $7.67
  • A54859 ACT 5/16-24 0.318 2-23/32 H5 2 Bottoming HSS TiN 15
    $22.68
  • A54097 ACT 10-32 0.194 2-3/8 H2 4 Taper, Plug, Bottoming HSS Uncoated 11
    $17.36
  • A54004 ACT 6-40 0.141 2 H2 3 Taper HSS STEAM OXIDE 100
    $5.99
  • A53917 ACT 3-56 0.141 1-13/16 H2 3 Bottoming HSS Uncoated 31
    $8.82
  • A79045 ACT 8-32 0.1680 2-1/8 H3 4 Taper, Plug, Bottoming HSS TiN 2
    $41.80
  • A77619 ACT 10-32 0.1940 2-3/8 H2 2 SP/PT Bottom HSS TiN 21
    $15.36
  • A77476 ACT M8 x 1.0 0.3180 2.7188" D5 4 Taper HSS Uncoated 36
    $12.14
  • A77462 ACT M12 x 1.25 0.3670 3-3/8 D5 3 SP/PT Plug HSS Uncoated 40
    $19.51
  • A77421 ACT 3-56 0.1410 1-13/16 H2 2 Semi Bottom HSS ZRN 7
    $30.17
  • A77404 ACT 10-24 0.1360 6 H3 2 SP/PT Plug HSS ALTiN 17
    $56.71
  • A77236 ACT 1/2-13 0.3670 3-3/8 H3 4 Bottom HSS Uncoated 85
    $49.72
  • A77235 ACT 1/2-13 0.3670 3-3/8 H3 4 Plug HSS TiN 8
    $53.69
  • A57967 ACT M12 X 1.75 0.367 3-3/8 D6 4 Plug HSS TIN 23
    $30.80
  • A57869 ACT 1/4-28 0.255 2-1/2 H3 4 Plug HSS TIN 19
    $10.39
  • A55889 ACT M6 X 1.0 0.255 2-1/2 D8 Bottoming HSS TiN 20
    $21.36
  • A55880 ACT 1/2-20 0.367 3-3/8 H3 4 Hand Plug HSS Uncoated 46
    $33.28
  • A54963 ACT M20 X 2.5 0.652 4-15/32 D7 4 Taper, Plug, Bottoming HSS Uncoated 10
    $175.11
  • A54860 ACT 5/16-24 0.318 2-23/32 H7 2 Bottoming HSS TiN 10
    $22.68
  • A54581 ACT 4-48 0.141 1-7/8 H1 2 Spiral Point Plug HSS Uncoated 14
    $8.99
  • A54237 ACT 3/8-16 0.381 2-15/16 H3 4 Bottoming HSS NIT/ST 69
    $9.19
  • A54110 ACT 10-32 0.194 2-3/8 H3 4 Taper, Plug, Bottoming HSS Uncoated 28
    $17.36
  • A54007 ACT 6-40 0.141 2 H2 3 Plug HSS STEAM OXIDE 15
    $5.99
  • A79025 ACT 10-24 0.1940 2-3/8 H3 4 Taper, Plug, Bottoming HSS Uncoated 13
    $29.35
  • A77620 ACT 10-32 0.1940 2-3/8 H3 2 SP/PT Bottom HSS TiN 17
    $15.36
  • A77477 ACT M8 x 1.0 0.3180 2.7188" D5 4 Plug HSS Uncoated 25
    $12.14
  • A77463 ACT M12 x 1.25 0.3670 3-3/8 D5 3 SP/PT Plug HSS TiN 18
    $23.52
  • A77405 ACT 10-32 0.1360 6 H3 2 SP/PT Plug HSS ALTiN 2
    $56.71
  • A77398 ACT M6 X 1.0 0.2550 2-1/2 D9 None Single Thread HSS TiN 23
    $19.93
  • A77238 ACT 1/2-20 0.3670 3-3/8 H3 4 Taper HSS Uncoated 77
    $56.24
  • A77237 ACT 1/2-13 0.3670 3-3/8 H3 4 Bottom HSS TiN 24
    $53.69
  • A58020 ACT M20 X 2.5 0.652 4-15/32 D7 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $303.37
  • A57989 ACT M12 X 1.25 0.367 3-3/8 D5 4 Bottoming HSS TIN 24
    $30.80
  • A57913 ACT 10-32 0.194 2-3/8 H3 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $26.60
  • A57893 ACT 1/4-28 0.255 2-1/2 H3 4 Bottoming HSS TIN 20
    $10.39
  • A55933 ACT 5/16-18 0.318 2-23/32 H5 2 Plug HSS TiN 18
    $22.68
  • A55881 ACT 1/2-20 17.141 1-7/25 H3 4 Hand Bottoming HSS Uncoated 16
    $33.28
  • A55809 ACT 4-40 0.141 1-7/8 H2 2 High Spiral HSS Uncoated 31
    $21.85
  • A54582 ACT 4-48 0.141 1-7/8 H2 2 Spiral Point Plug HSS Uncoated 33
    $8.82
  • A54234 ACT 3/8-16 0.381 2-15/16 H3 4 Plug HSS NIT/ST 100
    $9.19
  • A54010 ACT 6-40 0.141 2 H2 3 Bottoming HSS STEAM OXIDE 16
    $5.99
  • A53947 ACT 4-36 0.141 1-7/8 H2 3 Plug HSS Uncoated 13
    $6.93
  • A79026 ACT 10-32 0.1940 2-3/8 H3 4 Taper, Plug, Bottoming HSS Uncoated 6
    $29.35
  • A77478 ACT M8 x 1.0 0.3180 2.7188" D5 4 Bottom HSS Uncoated 28
    $12.14
  • A77464 ACT M12 x 1.50 0.3670 3-3/8 D6 3 SP/PT Plug HSS Uncoated 58
    $19.51
  • A77444 ACT M6 x 1.0 0.2550 2-1/2 D9 None Single Thread HSS Uncoated 100
    $15.74
  • A77240 ACT 1/2-20 0.3670 3-3/8 H3 4 Plug HSS Uncoated 63
    $56.24
  • A77239 ACT 1/2-20 0.3670 3-3/8 H3 4 Taper HSS TiN 10
    $60.22
  • A57990 ACT M12 X 1.75 0.367 3-3/8 D6 4 Bottoming HSS TIN 22
    $30.80
  • A57846 ACT 5/16-18 0.318 2-23/32 H3 4 Taper HSS TIN 76
    $12.70
  • A55934 ACT 5/16-18 0.318 2-23/32 H7 2 Plug HSS TiN 7
    $22.68
  • A55810 ACT 4-48 0.141 1-7/8 H2 2 High Spiral HSS Uncoated 41
    $21.85
  • A54964 ACT M24 X 3.0 0.76 4-29/32 D8 4 Taper, Plug, Bottoming HSS Uncoated 6
    $256.33
  • A54732 ACT 12-24 0.22 2-3/8 H3 2 Spiral Point Bottoming HSS Uncoated 38
    $9.82
  • A54584 ACT 4-48 0.141 1-7/8 H2 2 Spiral Point Plug HSS STEAM OXIDE 64
    $9.60

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

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