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
    A77385 ACT 5/16-18 0.3180 2.7188" H8 None Single Thread HSS TiN Available to Order*
    $21.18
  • A77276 ACT 1/4-28 0.2550 2-1/2 H3 4 Plug HSS Uncoated Available to Order*
    $29.92
  • A77273 ACT 1/4-20 0.2550 2-1/2 H3 4 Bottom HSS TiN Available to Order*
    $33.26
  • A57993 ACT M16 X 1.5 0.48 3-13/16 D6 4 Bottoming HSS TIN 5
    $54.35
  • A57897 ACT 3/8-24 0.381 2-15/16 H3 4 Bottoming HSS TIN 12
    $13.94
  • A55815 ACT 8-32 0.168 2-1/8 H3 3 High Spiral HSS Uncoated 40
    $17.12
  • A54905 ACT M12 X 1.25 0.367 3-3/8 D5 4 Plug HSS Uncoated 100
    $17.86
  • A54595 ACT 6-32 0.141 2 H1 2 Spiral Point Plug HSS Uncoated 47
    $7.51
  • A54332 ACT 9/16-12 0.429 3-19/32 H3 4 Plug HSS NIT/ST 15
    $26.60
  • A54199 ACT 5/16-18 0.318 2-23/32 H3 4 Taper, Plug, Bottoming HSS Uncoated 67
    $20.21
  • A54109 ACT 10-32 0.194 2-3/8 H3 4 Bottoming HSS STEAM OXIDE 16
    $5.94
  • A77446 ACT M10 x 1.5 0.3810 2-15/16 D11 None Single Thread HSS Uncoated Available to Order*
    $20.17
  • A77386 ACT 5/16-24 0.3180 2.7188" H5 None Single Thread HSS TiN Available to Order*
    $21.18
  • A77278 ACT 1/4-28 0.2550 2-1/2 H3 4 Bottom HSS Uncoated Available to Order*
    $29.92
  • A77275 ACT 1/4-28 0.2550 2-1/2 H3 4 Taper HSS TiN Available to Order*
    $33.26
  • A57994 ACT M16 X 2.0 0.48 3-13/16 D7 4 Bottoming HSS TIN 16
    $54.35
  • A57918 ACT 5/16-18 0.318 2-23/32 H3 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $36.41
  • A57850 ACT 7/16-14 0.323 3-5/32 H3 4 Taper HSS TIN 1
    $21.86
  • A55816 ACT 8-36 0.168 2-1/8 H3 3 High Spiral HSS Uncoated 21
    $17.12
  • A54906 ACT M12 X 1.25 0.367 3-3/8 D5 4 Bottoming HSS Uncoated 24
    $17.86
  • A54596 ACT 6-32 0.141 2 H2 2 Spiral Point Plug HSS Uncoated 12
    $6.40
  • A54347 ACT 9/16-18 0.429 3-19/32 H3 4 Bottoming HSS NIT/ST 25
    $26.60
  • A54116 ACT 12-24 0.22 2-3/8 H3 4 Taper HSS STEAM OXIDE 77
    $6.23
  • A53938 ACT 4-48 0.141 1-7/8 H2 3 Plug HSS Uncoated 62
    $6.68
  • A77534 ACT M10 X 1.5 0.3810 2-15/16 D11 None Plug HSS Uncoated Available to Order*
    $20.17
  • A77387 ACT 5/16-24 0.3180 2.7188" H7 None Single Thread HSS TiN Available to Order*
    $21.18
  • A77348 ACT 8-32 0.1680 2-1/8 H3 3 Semi Bottom HSS ZRN Available to Order*
    $21.60
  • A77280 ACT 5/16-18 0.3180 2.7188" H3 4 Taper HSS Uncoated Available to Order*
    $36.87
  • A77277 ACT 1/4-28 0.2550 2-1/2 H3 4 Plug HSS TiN Available to Order*
    $33.26
  • A57945 ACT M18 X 1.5 0.542 4-1/32 D6 4 Taper HSS TIN 10
    $73.02
  • A57874 ACT 7/16-14 0.323 3-5/32 H3 4 Plug HSS TIN 22
    $21.86
  • A54907 ACT M12 X 1.75 0.367 3-3/8 D6 4 Taper HSS Uncoated 100
    $17.86
  • A54597 ACT 6-32 0.141 2 H3 2 Spiral Point Plug HSS Uncoated 100
    $6.40
  • A54344 ACT 9/16-18 0.429 3-19/32 H3 4 Plug HSS NIT/ST 46
    $26.60
  • A54219 ACT 5/16-24 0.318 2-23/32 H3 4 Taper, Plug, Bottoming HSS Uncoated 19
    $20.21
  • A54119 ACT 12-24 0.22 2-3/8 H3 4 Plug HSS STEAM OXIDE 100
    $6.23
  • A53941 ACT 4-48 0.141 1-7/8 H2 3 Bottoming HSS Uncoated 57
    $6.68
  • A77535 ACT M10 X 1.5 0.3810 2-15/16 D11 None Bottom HSS Uncoated Available to Order*
    $20.17
  • A77431 ACT 5/16-18 0.3180 2.7188" H8 None Single Thread HSS Uncoated Available to Order*
    $16.66
  • A77349 ACT 8-36 0.1680 2-1/8 H3 3 Semi Bottom HSS ZRN Available to Order*
    $21.60
  • A77281 ACT 5/16-18 0.3180 2.7188" H3 4 Plug HSS Uncoated Available to Order*
    $36.87
  • A77279 ACT 1/4-28 0.2550 2-1/2 H3 4 Bottom HSS TiN Available to Order*
    $33.26
  • A57946 ACT M18 X 2.5 0.542 4-1/32 D7 4 Taper HSS TIN 8
    $73.02
  • A57919 ACT 5/16-24 0.318 2-23/32 H3 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $36.41
  • A57898 ACT 7/16-14 0.323 3-5/32 H3 4 Bottoming HSS TIN 5
    $21.86
  • A54908 ACT M12 X 1.75 0.367 3-3/8 D6 4 Plug HSS Uncoated 100
    $17.86
  • A54600 ACT 6-32 0.141 2 H7 2 Spiral Point Plug HSS Uncoated 40
    $6.97
  • A54360 ACT 5/8-11 0.48 3-13/16 H3 4 Bottoming HSS NIT/ST 46
    $31.96
  • A54122 ACT 12-24 0.22 2-3/8 H3 4 Bottoming HSS STEAM OXIDE 29
    $6.23
  • A53958 ACT 5-40 0.141 1-15/16 H2 3 Taper HSS Uncoated 75
    $6.27
  • A77432 ACT 5/16-24 0.3180 2.7188" H5 None Single Thread HSS Uncoated Available to Order*
    $16.66
  • A77283 ACT 5/16-18 0.3180 2.7188" H3 4 Bottom HSS Uncoated Available to Order*
    $36.87
  • A77282 ACT 5/16-18 0.3180 2.7188" H3 4 Plug HSS TiN Available to Order*
    $43.44
  • A57972 ACT M18 X 1.5 0.542 4-1/32 D6 4 Plug HSS TIN 15
    $73.02
  • A57851 ACT 7/16-20 0.323 3-5/32 H3 4 Taper HSS TIN 6
    $21.86
  • A55894 ACT M12 X 1.75 0.367 3-3/8 D11 Plug HSS TiN 22
    $43.21
  • A55817 ACT 10-24 0.194 2-3/8 H3 3 High Spiral HSS Uncoated 34
    $17.12
  • A54909 ACT M12 X 1.75 0.367 3-3/8 D6 4 Bottoming HSS Uncoated Available to Order*
    $17.86
  • A54599 ACT 6-32 0.141 2 H3 2 Spiral Point Plug HSS STEAM OXIDE 100
    $7.18
  • A54357 ACT 5/8-11 0.48 3-13/16 H3 4 Plug HSS NIT/ST 14
    $31.96
  • A54228 ACT 3/8-16 0.381 2-15/16 H2 4 Taper, Plug, Bottoming HSS Uncoated 9
    $26.02
  • A54126 ACT 12-28 0.22 2-3/8 H3 4 Taper HSS STEAM OXIDE 70
    $6.89
  • A53954 ACT 5-40 0.141 1-15/16 H1 3 Plug HSS Uncoated 24
    $6.68
  • A77538 ACT M12 x 1.50 0.3670 3-3/8 D6 4 Taper HSS Uncoated Available to Order*
    $17.24
  • A77433 ACT 5/16-24 0.3180 2.7188" H7 None Single Thread HSS Uncoated Available to Order*
    $16.66
  • A77285 ACT 5/16-24 0.3180 2.7188" H3 4 Taper HSS TiN Available to Order*
    $43.44
  • A77284 ACT 5/16-24 0.3180 2.7188" H3 4 Taper HSS Uncoated Available to Order*
    $36.87
  • A57973 ACT M18 X 2.5 0.542 4-1/32 D7 4 Plug HSS TIN 20
    $73.02
  • A57875 ACT 7/16-20 0.323 3-5/32 H3 4 Plug HSS TIN 20
    $21.86
  • A55895 ACT M12 X 1.75 0.367 3-3/8 D11 Bottoming HSS TiN 13
    $43.21
  • A55818 ACT 10-32 0.194 2-3/8 H3 3 High Spiral HSS Uncoated 50
    $17.12
  • A54598 ACT 6-32 0.141 2 H3 2 Spiral Point Plug HSS NIT/ST 100
    $7.39
  • A54374 ACT 5/8-18 0.48 3-13/16 H3 4 Bottoming HSS NIT/ST 52
    $31.96
  • A54239 ACT 3/8-16 0.381 2-15/16 H3 4 Taper, Plug, Bottoming HSS Uncoated 100
    $23.14
  • A54129 ACT 12-28 0.22 2-3/8 H3 4 Plug HSS STEAM OXIDE 23
    $6.89
  • A53956 ACT 5-40 0.141 1-15/16 H2 2 Plug HSS Uncoated 34
    $6.68
  • A77539 ACT M12 x 1.50 0.3680 3-3/8 D6 4 Plug HSS Uncoated Available to Order*
    $17.24
  • A77401 ACT M12 X 1.75 0.3670 3-3/8 D12 None Single Thread HSS TiN Available to Order*
    $41.77
  • A77350 ACT 10-24 0.1940 2-3/8 H3 3 Semi Bottom HSS ZRN Available to Order*
    $21.60
  • A77287 ACT 5/16-24 0.3180 2.7188" H3 4 Plug HSS TiN Available to Order*
    $43.44
  • A77286 ACT 5/16-24 0.3180 2.7188" H3 4 Plug HSS Uncoated Available to Order*
    $36.87
  • A57995 ACT M18 X 1.5 0.542 4-1/32 D6 4 Bottoming HSS TIN 10
    $73.02
  • A57920 ACT 3/8-16 0.381 2-15/16 H3 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $41.18
  • A57899 ACT 7/16-20 0.323 3-5/32 H3 4 Bottoming HSS TIN 16
    $21.86
  • A55257 ACT 6-32 0.141 2 H3 2 Spiral Point Plug HSS TIN 75
    $11.10
  • A54861 ACT 3/8-16 0.381 2-15/16 H5 2 Bottoming HSS TiN 100
    $24.99
  • A54371 ACT 5/8-18 0.48 3-13/16 H3 4 Plug HSS NIT/ST 8
    $31.96
  • A54132 ACT 12-28 0.22 2-3/8 H3 4 Bottoming HSS STEAM OXIDE 16
    $6.89
  • A53960 ACT 5-40 0.141 1-15/16 H2 3 Plug HSS Uncoated 7
    $6.27
  • A77540 ACT M12 x 1.50 0.3690 3-3/8 D6 4 Bottom HSS Uncoated Available to Order*
    $17.24
  • A77447 ACT M12 x 1.75 0.3670 3-3/8 D12 None Single Thread HSS Uncoated Available to Order*
    $34.61
  • A77351 ACT 10-32 0.1940 2-3/8 H3 3 Semi Bottom HSS ZRN Available to Order*
    $21.60
  • A77289 ACT 5/16-24 0.3180 2.7188" H3 4 Bottom HSS TiN Available to Order*
    $43.44
  • A77288 ACT 5/16-24 0.3180 2.7188" H3 4 Bottom HSS Uncoated Available to Order*
    $36.87
  • A57996 ACT M18 X 2.5 0.542 4-1/32 D7 4 Bottoming HSS TIN 5
    $73.02
  • A57852 ACT 1/2-13 0.367 3-3/8 H3 4 Taper HSS TIN 28
    $22.81
  • A55191 ACT 6-32 0.141 2 H3 2 Spiral Point Plug HSS ALTiN 77
    $11.51
  • A54862 ACT 3/8-16 0.381 2-15/16 H7 2 Bottoming HSS TiN 13
    $24.99
  • A54259 ACT 3/8-24 0.381 2-15/16 H3 4 Taper, Plug, Bottoming HSS Uncoated 42
    $23.14
  • A54149 ACT 1/4-20 0.255 2-1/2 H3 4 Taper HSS STEAM OXIDE 100
    $6.35

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

  • Total: items /

Adding your products to cart

View Cart Continue Shopping