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
    A54046 ACT 8-36 0.168 2-1/8 H2 4 Taper HSS STEAM OXIDE 80
    $5.94
  • A53919 ACT 4-40 0.141 1-7/8 H1 2 Plug HSS Uncoated 100
    $6.89
  • A77301 ACT 5/16-18 0.3180 2.7188" H5 None Bottom HSS Uncoated Available to Order*
    $16.66
  • A77248 ACT 5/8-11 0.4800 3-13/16 H3 4 Bottom HSS Uncoated Available to Order*
    $75.07
  • A77247 ACT 5/8-11 0.4800 3-13/16 H3 4 Plug HSS TiN Available to Order*
    $80.51
  • A57969 ACT M14 X 2.0 0.429 3-19/32 D7 4 Plug HSS TIN 9
    $44.49
  • A57871 ACT 5/16-24 0.318 2-23/32 H3 4 Plug HSS TIN 23
    $12.29
  • A55891 ACT M8 X 1.25 0.318 2-23/32 D9 Bottoming HSS TiN 50
    $23.55
  • A55812 ACT 5-44 0.141 1-15/16 H3 2 High Spiral HSS Uncoated 9
    $21.07
  • A54982 ACT M16 X 2.0 0.48 3-13/16 D7 3 Spiral Point Plug HSS Uncoated 52
    $35.26
  • A54901 ACT M10 X 1.5 0.381 2-15/16 D6 4 Taper HSS Uncoated 100
    $15.10
  • A54591 ACT 5-40 0.141 1-15/16 H2 2 Spiral Point Plug HSS STEAM OXIDE 34
    $8.21
  • A54289 ACT 7/16-20 0.323 3-5/32 H3 4 Bottoming HSS NIT/ST 34
    $14.85
  • A54138 ACT 1/4-20 0.255 2-1/2 H1 4 Taper, Plug, Bottoming HSS Uncoated 23
    $21.32
  • A54049 ACT 8-36 0.168 2-1/8 H2 4 Plug HSS STEAM OXIDE 100
    $5.94
  • A53921 ACT 4-40 0.141 1-7/8 H1 3 Plug HSS Uncoated 100
    $6.68
  • A77399 ACT M8 X 1.25 0.3180 2.7188" D10 None Single Thread HSS TiN Available to Order*
    $22.76
  • A77344 ACT 5-40 0.1410 1-15/16 H3 2 Semi Bottom HSS ZRN Available to Order*
    $25.91
  • A77302 ACT 5/16-18 0.3180 2.7188" H8 None Plug HSS Uncoated Available to Order*
    $16.66
  • A77250 ACT 5/8-18 0.4800 3-13/16 H3 4 Taper HSS Uncoated Available to Order*
    $75.07
  • A77249 ACT 5/8-11 0.4800 3-13/16 H3 4 Bottom HSS TiN Available to Order*
    $80.51
  • A57991 ACT M14 X 1.5 0.429 3-19/32 D6 4 Bottoming HSS TIN 15
    $44.49
  • A57895 ACT 5/16-24 0.318 2-23/32 H3 4 Bottoming HSS TIN 13
    $12.29
  • A57616 ACT M16 X 2.0 0.48 3-13/16 D7 3 Spiral Point Plug HSS TIN 16
    $45.36
  • A54902 ACT M10 X 1.5 0.381 2-15/16 D6 4 Plug HSS Uncoated 100
    $15.10
  • A54590 ACT 5-40 0.141 1-15/16 H2 2 Spiral Point Plug HSS NIT/ST 20
    $8.46
  • A54286 ACT 7/16-20 0.323 3-5/32 H3 4 Plug HSS NIT/ST 56
    $14.85
  • A54143 ACT 1/4-20 0.255 2-1/2 H2 4 Taper, Plug, Bottoming HSS Uncoated 11
    $21.32
  • A54052 ACT 8-36 0.168 2-1/8 H2 4 Bottoming HSS STEAM OXIDE 19
    $5.94
  • A53924 ACT 4-40 0.141 1-7/8 H2 2 Plug HSS Uncoated 19
    $6.68
  • A77445 ACT M8 x 1.25 0.3180 2.7188" D10 None Single Thread HSS Uncoated Available to Order*
    $17.79
  • A77345 ACT 5-44 0.1410 1-15/16 H3 2 Semi Bottom HSS ZRN Available to Order*
    $24.23
  • A77303 ACT 5/16-18 0.3180 2.7188" H8 None Bottom HSS Uncoated Available to Order*
    $16.66
  • A77252 ACT 5/8-18 0.4800 3-13/16 H3 4 Plug HSS Uncoated Available to Order*
    $75.07
  • A77251 ACT 5/8-18 0.4800 3-13/16 H3 4 Taper HSS TiN Available to Order*
    $80.51
  • A57992 ACT M14 X 2.0 0.429 3-19/32 D7 4 Bottoming HSS TIN 19
    $44.49
  • A57848 ACT 3/8-16 0.381 2-15/16 H3 4 Taper HSS TIN 76
    $13.94
  • A55256 ACT 5-40 0.141 1-15/16 H2 2 Spiral Point Plug HSS TIN 22
    $11.88
  • A54983 ACT M18 X 2.5 0.542 4-1/32 D7 3 Spiral Point Plug HSS Uncoated 24
    $51.83
  • A54903 ACT M10 X 1.5 0.381 2-15/16 D6 4 Bottoming HSS Uncoated 100
    $15.10
  • A54306 ACT 1/2-13 0.367 3-3/8 H3 4 Bottoming HSS NIT/ST 100
    $15.84
  • A54156 ACT 1/4-20 0.255 2-1/2 H3 4 Taper, Plug, Bottoming HSS Uncoated 100
    $16.79
  • A54071 ACT 10-24 0.194 2-3/8 H3 4 Taper HSS STEAM OXIDE 9
    $5.94
  • A53928 ACT 4-40 0.141 1-7/8 H2 3 Plug HSS Uncoated 100
    $6.27
  • A77541 ACT M10 X 1.0 0.3810 2-15/16 D5 4 Taper HSS Uncoated Available to Order*
    $14.27
  • A77532 ACT M8 X 1.25 0.3180 2.7188" D10 None Plug HSS Uncoated Available to Order*
    $17.79
  • A77304 ACT 5/16-24 0.3180 2.7188" H5 None Plug HSS Uncoated Available to Order*
    $16.66
  • A77254 ACT 5/8-18 0.4800 3-13/16 H3 4 Bottom HSS Uncoated Available to Order*
    $75.07
  • A77253 ACT 5/8-18 0.4800 3-13/16 H3 4 Plug HSS TiN Available to Order*
    $80.51
  • A57943 ACT M16 X 1.5 0.48 3-13/16 D6 4 Taper HSS TIN 5
    $54.35
  • A57916 ACT 1/4-20 0.255 2-1/2 H3 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $29.21
  • A57872 ACT 3/8-16 0.381 2-15/16 H3 4 Plug HSS TIN 41
    $13.94
  • A57617 ACT M18 X 2.5 0.542 4-1/32 D7 3 Spiral Point Plug HSS TIN Available to Order*
    $60.20
  • A55813 ACT 6-32 0.141 2 H3 2 High Spiral HSS Uncoated 60
    $17.12
  • A55190 ACT 5-40 0.141 1-15/16 H2 2 Spiral Point Plug HSS ALTiN 17
    $12.62
  • A54303 ACT 1/2-13 0.367 3-3/8 H3 4 Plug HSS NIT/ST 66
    $15.84
  • A54074 ACT 10-24 0.194 2-3/8 H3 4 Plug HSS STEAM OXIDE 100
    $5.94
  • A53922 ACT 4-40 0.141 1-7/8 H1 3 Bottoming HSS Uncoated 100
    $6.68
  • A77542 ACT M10 X 1.0 0.3810 2-15/16 D5 4 Plug HSS Uncoated Available to Order*
    $14.27
  • A77533 ACT M8 X 1.25 0.3180 2.7188" D10 None Bottom HSS Uncoated Available to Order*
    $17.79
  • A77305 ACT 5/16-24 0.3180 2.7188" H5 None Bottom HSS Uncoated Available to Order*
    $16.66
  • A77270 ACT 1/4-20 0.2550 2-1/2 H3 4 Plug HSS Uncoated Available to Order*
    $29.92
  • A77255 ACT 5/8-18 0.4800 3-13/16 H3 4 Bottom HSS TiN Available to Order*
    $80.51
  • A57944 ACT M16 X 2.0 0.48 3-13/16 D7 4 Taper HSS TIN 11
    $54.35
  • A57896 ACT 3/8-16 0.381 2-15/16 H3 4 Bottoming HSS TIN 69
    $13.94
  • A55814 ACT 6-40 0.14 2 H3 2 High Spiral HSS Uncoated 100
    $17.12
  • A54984 ACT M20 X 2.5 0.652 4-15/32 D7 4 Spiral Point Plug HSS Uncoated 55
    $68.41
  • A54592 ACT 5-44 0.141 1-15/16 H2 2 Spiral Point Plug HSS Uncoated 100
    $8.54
  • A54323 ACT 1/2-20 0.367 3-3/8 H3 4 Bottoming HSS NIT/ST 24
    $17.90
  • A54177 ACT 1/4-28 0.255 2-1/2 H3 4 Taper, Plug, Bottoming HSS Uncoated 100
    $16.79
  • A54077 ACT 10-24 0.194 2-3/8 H3 4 Bottoming HSS STEAM OXIDE 100
    $5.94
  • A53925 ACT 4-40 0.141 1-7/8 H2 2 Bottoming HSS Uncoated 31
    $6.68
  • A77543 ACT M10 X 1.0 0.3810 2-15/16 D5 4 Bottom HSS Uncoated Available to Order*
    $14.27
  • A77346 ACT 6-32 0.1410 2 H3 2 Semi Bottom HSS ZRN Available to Order*
    $21.60
  • A77306 ACT 5/16-24 0.3180 2.7188" H7 None Plug HSS Uncoated Available to Order*
    $16.66
  • A77272 ACT 1/4-20 0.2550 2-1/2 H3 4 Bottom HSS Uncoated Available to Order*
    $29.92
  • A77269 ACT 1/4-20 0.2550 2-1/2 H3 4 Taper HSS TiN Available to Order*
    $33.26
  • A57970 ACT M16 X 1.5 0.48 3-13/16 D6 4 Plug HSS TIN 9
    $54.35
  • A57917 ACT 1/4-28 0.255 2-1/2 H3 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $29.21
  • A57849 ACT 3/8-24 0.381 2-15/16 H3 4 Taper HSS TIN 3
    $13.94
  • A57618 ACT M20 X 2.5 0.652 4-15/32 D7 4 Spiral Point Plug HSS TIN 26
    $88.07
  • A55892 ACT M10 X 1.5 0.381 2-15/16 D11 Plug HSS TiN 5
    $26.52
  • A54594 ACT 5-44 0.141 1-15/16 H2 2 Spiral Point Plug HSS STEAM OXIDE 83
    $9.28
  • A54320 ACT 1/2-20 0.367 3-3/8 H3 4 Plug HSS NIT/ST 22
    $17.90
  • A54103 ACT 10-32 0.194 2-3/8 H3 4 Taper HSS STEAM OXIDE 6
    $5.94
  • A53931 ACT 4-40 0.141 1-7/8 H2 3 Bottoming HSS Uncoated 100
    $6.27
  • A77347 ACT 6-40 0.1410 2 H3 2 Semi Bottom HSS ZRN Available to Order*
    $22.06
  • A77307 ACT 5/16-24 0.3180 2.7188" H7 None Bottom HSS Uncoated Available to Order*
    $16.66
  • A77274 ACT 1/4-28 0.2550 2-1/2 H3 4 Taper HSS Uncoated Available to Order*
    $29.92
  • A77271 ACT 1/4-20 0.2550 2-1/2 H3 4 Plug HSS TiN Available to Order*
    $33.26
  • A57971 ACT M16 X 2.0 0.48 3-13/16 D7 4 Plug HSS TIN 24
    $54.35
  • A57873 ACT 3/8-24 0.381 2-15/16 H3 4 Plug HSS TIN 26
    $13.94
  • A55893 ACT M10 X 1.5 0.381 2-15/16 D10 Bottoming HSS TiN 9
    $26.52
  • A54904 ACT M12 X 1.25 0.367 3-3/8 D5 4 Taper HSS Uncoated 43
    $17.86
  • A54593 ACT 5-44 0.141 1-15/16 H2 2 Spiral Point Plug HSS NIT/ST 20
    $6.81
  • A54335 ACT 9/16-12 0.429 3-19/32 H3 4 Bottoming HSS NIT/ST 33
    $26.60
  • A54186 ACT 5/16-18 0.318 2-23/32 H2 4 Taper, Plug, Bottoming HSS Uncoated 12
    $22.52
  • A54106 ACT 10-32 0.194 2-3/8 H3 4 Plug HSS STEAM OXIDE 16
    $5.94
  • A53936 ACT 4-48 0.141 1-7/8 H2 3 Taper HSS Uncoated 75
    $6.68
  • A77400 ACT M10 X 1.5 0.3810 2-15/16 D11 None Single Thread HSS TiN Available to Order*
    $25.61

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

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