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
    A54257 ACT 3/8-24 0.381 2-15/16 H3 4 Bottoming HSS NIT/ST 27
    $9.19
  • A54123 ACT 12-24 0.22 2-3/8 H3 4 Taper, Plug, Bottoming HSS Uncoated 16
    $17.36
  • A54032 ACT 8-32 0.168 2-1/8 H3 4 Taper HSS STEAM OXIDE 100
    $5.93
  • A79046 ACT 10-24 0.1940 2-3/8 H3 4 Taper, Plug, Bottoming HSS TiN 4
    $41.80
  • A77621 ACT 12-24 0.2200 2-3/8 H3 2 SP/PT Bottom HSS TiN 10
    $16.32
  • A77530 ACT M6 X 1.0 0.2550 2-1/2 D9 None Plug HSS Uncoated 12
    $15.74
  • A77465 ACT M12 x 1.50 0.3670 3-3/8 D6 3 SP/PT Plug HSS TiN 7
    $23.52
  • A77342 ACT 4-40 0.1410 1-7/8 H2 2 Semi Bottom HSS ZRN 17
    $25.91
  • A77242 ACT 1/2-20 0.3670 3-3/8 H3 4 Bottom HSS Uncoated 65
    $56.24
  • A77241 ACT 1/2-20 0.3670 3-3/8 H3 4 Plug HSS TiN 22
    $60.22
  • A58021 ACT M24 X 3.0 0.76 4-29/32 D8 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $444.50
  • A57941 ACT M14 X 1.5 0.429 3-19/32 D6 4 Taper HSS TIN 13
    $46.06
  • A57914 ACT 12-24 0.22 2-3/8 H3 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $28.04
  • A57870 ACT 5/16-18 0.318 2-23/32 H3 4 Plug HSS TIN 7
    $12.70
  • A55935 ACT 5/16-24 0.318 2-23/32 H5 2 Plug HSS TiN 5
    $22.68
  • A54898 ACT M10 X 1.25 0.381 2-15/16 D5 4 Taper HSS Uncoated 15
    $15.63
  • A54583 ACT 4-48 0.141 1-7/8 H2 2 Spiral Point Plug HSS NIT/ST 33
    $9.82
  • A54254 ACT 3/8-24 0.381 2-15/16 H3 4 Plug HSS NIT/ST 88
    $9.19
  • A54035 ACT 8-32 0.168 2-1/8 H3 4 Plug HSS STEAM OXIDE 100
    $5.93
  • A53920 ACT 4-40 0.141 1-7/8 H1 3 Taper HSS Uncoated 70
    $6.93
  • A79047 ACT 10-32 0.1940 2-3/8 H3 4 Taper, Plug, Bottoming HSS TiN 6
    $41.80
  • A77531 ACT M6 X 1.0 0.2550 2-1/2 D9 None Bottom HSS Uncoated 84
    $15.74
  • A77343 ACT 4-48 0.1410 1-7/8 H2 2 Semi Bottom HSS ZRN 12
    $25.91
  • A77244 ACT 5/8-11 0.4800 3-13/16 H3 4 Taper HSS Uncoated 17
    $75.07
  • A77243 ACT 1/2-20 0.3670 3-3/8 H3 4 Bottom HSS TiN 17
    $60.22
  • A57942 ACT M14 X 2.0 0.429 3-19/32 D7 4 Taper HSS TIN 11
    $46.06
  • A57894 ACT 5/16-18 0.318 2-23/32 H3 4 Bottoming HSS TIN 20
    $12.70
  • A55936 ACT 5/16-24 0.318 2-23/32 H7 2 Plug HSS TiN 3
    $22.68
  • A54981 ACT M14 X 2.0 0.429 3-19/32 D7 3 Spiral Point Plug HSS Uncoated 27
    $32.24
  • A54899 ACT M10 X 1.25 0.381 2-15/16 D5 4 Plug HSS Uncoated 100
    $15.63
  • A54588 ACT 5-40 0.141 1-15/16 H1 2 Spiral Point Plug HSS Uncoated 56
    $8.82
  • A54273 ACT 7/16-14 0.323 3-5/32 H3 4 Bottoming HSS NIT/ST 62
    $15.79
  • A54133 ACT 12-28 0.22 2-3/8 H3 4 Taper, Plug, Bottoming HSS Uncoated 7
    $18.59
  • A54038 ACT 8-32 0.168 2-1/8 H3 4 Bottoming HSS STEAM OXIDE 100
    $5.93
  • A53926 ACT 4-40 0.141 1-7/8 H2 3 Taper HSS Uncoated 100
    $6.48
  • A77300 ACT 5/16-18 0.3180 2.7188" H5 None Plug HSS Uncoated 52
    $16.66
  • A77246 ACT 5/8-11 0.4800 3-13/16 H3 4 Plug HSS Uncoated 20
    $75.07
  • A77245 ACT 5/8-11 0.4800 3-13/16 H3 4 Taper HSS TiN 7
    $80.51
  • A58022 ACT M27 X 3.0 0.896 5-1/8 D8 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $769.80
  • A57968 ACT M14 X 1.5 0.429 3-19/32 D6 4 Plug HSS TIN 17
    $46.06
  • A57915 ACT 12-28 0.22 2-3/8 H3 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $31.14
  • A57847 ACT 5/16-24 0.318 2-23/32 H3 4 Taper HSS TIN 8
    $12.70
  • A57615 ACT M14 X 2.0 0.429 3-19/32 D7 3 Spiral Point Plug HSS TIN 5
    $41.44
  • A55890 ACT M8 X 1.25 0.318 2-23/32 D9 Plug HSS TiN 83
    $24.37
  • A55811 ACT 5-40 0.141 1-15/16 H3 2 High Spiral HSS Uncoated 12
    $21.85
  • A54900 ACT M10 X 1.25 0.381 2-15/16 D5 4 Bottoming HSS Uncoated 11
    $15.63
  • A54589 ACT 5-40 0.141 1-15/16 H2 2 Spiral Point Plug HSS Uncoated 32
    $7.75
  • A54270 ACT 7/16-14 0.323 3-5/32 H3 4 Plug HSS NIT/ST 23
    $15.79
  • A54046 ACT 8-36 0.168 2-1/8 H2 4 Taper HSS STEAM OXIDE 80
    $6.14
  • A53919 ACT 4-40 0.141 1-7/8 H1 2 Plug HSS Uncoated 100
    $7.13
  • A77301 ACT 5/16-18 0.3180 2.7188" H5 None Bottom HSS Uncoated 100
    $16.66
  • A77248 ACT 5/8-11 0.4800 3-13/16 H3 4 Bottom HSS Uncoated 16
    $75.07
  • A77247 ACT 5/8-11 0.4800 3-13/16 H3 4 Plug HSS TiN 11
    $80.51
  • A57969 ACT M14 X 2.0 0.429 3-19/32 D7 4 Plug HSS TIN 9
    $46.06
  • A57871 ACT 5/16-24 0.318 2-23/32 H3 4 Plug HSS TIN 23
    $12.70
  • A55891 ACT M8 X 1.25 0.318 2-23/32 D9 Bottoming HSS TiN 24
    $24.37
  • A55812 ACT 5-44 0.141 1-15/16 H3 2 High Spiral HSS Uncoated 1
    $21.81
  • A54982 ACT M16 X 2.0 0.48 3-13/16 D7 3 Spiral Point Plug HSS Uncoated 23
    $36.48
  • A54901 ACT M10 X 1.5 0.381 2-15/16 D6 4 Taper HSS Uncoated 100
    $15.63
  • A54591 ACT 5-40 0.141 1-15/16 H2 2 Spiral Point Plug HSS STEAM OXIDE 34
    $8.50
  • A54289 ACT 7/16-20 0.323 3-5/32 H3 4 Bottoming HSS NIT/ST 34
    $15.37
  • A54138 ACT 1/4-20 0.255 2-1/2 H1 4 Taper, Plug, Bottoming HSS Uncoated 23
    $22.06
  • A54049 ACT 8-36 0.168 2-1/8 H2 4 Plug HSS STEAM OXIDE 100
    $6.14
  • A53921 ACT 4-40 0.141 1-7/8 H1 3 Plug HSS Uncoated 100
    $6.93
  • A77399 ACT M8 X 1.25 0.3180 2.7188" D10 None Single Thread HSS TiN 18
    $22.76
  • A77344 ACT 5-40 0.1410 1-15/16 H3 2 Semi Bottom HSS ZRN 3
    $25.91
  • A77302 ACT 5/16-18 0.3180 2.7188" H8 None Plug HSS Uncoated 66
    $16.66
  • A77250 ACT 5/8-18 0.4800 3-13/16 H3 4 Taper HSS Uncoated 21
    $75.07
  • A77249 ACT 5/8-11 0.4800 3-13/16 H3 4 Bottom HSS TiN 13
    $80.51
  • A58023 ACT M30 X 3.5 1.021 5-7/16 D9 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $983.63
  • A57991 ACT M14 X 1.5 0.429 3-19/32 D6 4 Bottoming HSS TIN 15
    $46.06
  • A57895 ACT 5/16-24 0.318 2-23/32 H3 4 Bottoming HSS TIN 25
    $12.70
  • A57616 ACT M16 X 2.0 0.48 3-13/16 D7 3 Spiral Point Plug HSS TIN 12
    $46.96
  • A54902 ACT M10 X 1.5 0.381 2-15/16 D6 4 Plug HSS Uncoated 100
    $15.63
  • A54590 ACT 5-40 0.141 1-15/16 H2 2 Spiral Point Plug HSS NIT/ST 20
    $8.74
  • A54286 ACT 7/16-20 0.323 3-5/32 H3 4 Plug HSS NIT/ST 56
    $15.37
  • A54143 ACT 1/4-20 0.255 2-1/2 H2 4 Taper, Plug, Bottoming HSS Uncoated 8
    $22.06
  • A54052 ACT 8-36 0.168 2-1/8 H2 4 Bottoming HSS STEAM OXIDE 19
    $6.14
  • A53924 ACT 4-40 0.141 1-7/8 H2 2 Plug HSS Uncoated 59
    $6.93
  • A77445 ACT M8 x 1.25 0.3180 2.7188" D10 None Single Thread HSS Uncoated 50
    $17.79
  • A77345 ACT 5-44 0.1410 1-15/16 H3 2 Semi Bottom HSS ZRN 11
    $24.23
  • A77303 ACT 5/16-18 0.3180 2.7188" H8 None Bottom HSS Uncoated 45
    $16.66
  • A77252 ACT 5/8-18 0.4800 3-13/16 H3 4 Plug HSS Uncoated 18
    $75.07
  • A77251 ACT 5/8-18 0.4800 3-13/16 H3 4 Taper HSS TiN 10
    $80.51
  • A57992 ACT M14 X 2.0 0.429 3-19/32 D7 4 Bottoming HSS TIN 19
    $46.06
  • A57848 ACT 3/8-16 0.381 2-15/16 H3 4 Taper HSS TIN 65
    $14.43
  • A55256 ACT 5-40 0.141 1-15/16 H2 2 Spiral Point Plug HSS TIN 22
    $12.29
  • A54983 ACT M18 X 2.5 0.542 4-1/32 D7 3 Spiral Point Plug HSS Uncoated 37
    $53.64
  • A54903 ACT M10 X 1.5 0.381 2-15/16 D6 4 Bottoming HSS Uncoated 100
    $15.63
  • A54306 ACT 1/2-13 0.367 3-3/8 H3 4 Bottoming HSS NIT/ST 100
    $16.37
  • A54156 ACT 1/4-20 0.255 2-1/2 H3 4 Taper, Plug, Bottoming HSS Uncoated 100
    $17.36
  • A54071 ACT 10-24 0.194 2-3/8 H3 4 Taper HSS STEAM OXIDE 9
    $6.14
  • A53928 ACT 4-40 0.141 1-7/8 H2 3 Plug HSS Uncoated 100
    $6.48
  • A77541 ACT M10 X 1.0 0.3810 2-15/16 D5 4 Taper HSS Uncoated 22
    $14.27
  • A77532 ACT M8 X 1.25 0.3180 2.7188" D10 None Plug HSS Uncoated 33
    $17.79
  • A77304 ACT 5/16-24 0.3180 2.7188" H5 None Plug HSS Uncoated 16
    $16.66
  • A77254 ACT 5/8-18 0.4800 3-13/16 H3 4 Bottom HSS Uncoated 20
    $75.07
  • A77253 ACT 5/8-18 0.4800 3-13/16 H3 4 Plug HSS TiN 10
    $80.51
  • A58024 ACT M33 X 3.5 1.108 5-3/4 D9 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $981.02
  • A57943 ACT M16 X 1.5 0.48 3-13/16 D6 4 Taper HSS TIN 5
    $56.23

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

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