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
    A55859 ACT 10-32 6.141 1-7/14 H2 3 Hand Bottoming HSS Uncoated 36
    $17.49
  • A55844 ACT M10 X 1.5 0.286 2-15/16 D6 3 High Spiral HSS Uncoated 24
    $40.99
  • A55828 ACT 7/16-20 0.323 3-5/32 H3 3 High Spiral HSS Uncoated 22
    $39.83
  • A55056 ACT 7/16-20 0.323 6 H3 NF .242 13/32 1-7/16 3 Spiral Point Plug HSS Uncoated 20
    $91.08
  • A54883 ACT M4 X 0.7 0.168 2-1/8 D4 4 Plug HSS Uncoated 100
    $6.89
  • A54810 ACT 5/8-11 0.633 6 H3 4 Pulley HSS Uncoated 6
    $93.97
  • A54792 ACT 3/8-24 0.381 2-15/16 H2 3 STI - Spiral Point Plug HSS Uncoated 19
    $30.93
  • A54567 ACT 2-56 0.141 1-3/4 H2 2 Spiral Point Plug HSS STEAM OXIDE 79
    $12.46
  • A54006 ACT 6-40 0.141 2 H2 3 Plug HSS NIT/ST 26
    $5.94
  • A53911 ACT 3-48 0.141 1-13/16 H2 3 Plug HSS STEAM OXIDE 20
    $8.42
  • A53884 ACT 1-72 0.141 1-11/16 H2 2 Bottoming HSS Uncoated 55
    $11.47
  • A79035 ACT 1/2-20 0.3670 3-3/8 H3 4 Taper, Plug, Bottoming HSS Uncoated Available to Order*
    $77.00
  • A77440 ACT M3 x 0.5 0.1410 1-15/16 D6 None Single Thread HSS Uncoated Available to Order*
    $16.44
  • A77412 ACT 7/16-14 0.3230 6 H3 3 SP/PT Plug HSS ALTiN Available to Order*
    $94.58
  • A77375 ACT M10 X 1.5 0.2860 2-15/16 D6 3 Semi Bottom HSS ZRN Available to Order*
    $45.12
  • A77360 ACT 7/16-14 0.3230 3.1563" H3 3 Semi Bottom HSS ZRN Available to Order*
    $46.16
  • A77175 ACT 3/4-10 0.5900 4-1/4 H3 4 Plug HSS Uncoated Available to Order*
    $105.08
  • A77174 ACT 3/4-10 0.5900 4-1/4 H3 4 Taper HSS TiN Available to Order*
    $111.82
  • A57960 ACT M5 X 0.8 0.194 2-3/8 D4 4 Plug HSS TIN 9
    $11.76
  • A57886 ACT 6-32 0.141 2 H3 3 Bottoming HSS TIN 16
    $8.54
  • A57650 ACT 1/2-14 0.6875 3-1/8 5 NPT - Interrupted HSS TIN 15
    $100.89
  • A57627 ACT 3/8-18 0.7 2-9/16 4 NPT HSS STEAM OXIDE 14
    $39.59
  • A55932 ACT 1/4-28 0.255 2-1/2 H6 2 Plug HSS TiN 18
    $19.75
  • A55860 ACT 12-24 0.22 2-3/8 H2 3 Hand Plug HSS Uncoated 65
    $17.49
  • A55254 ACT 2-56 0.141 1-3/4 H2 2 Spiral Point Plug HSS TIN 17
    $16.83
  • A55031 ACT 1-11-1/2 1.125 3-3/4 5 NPTF Dryseal HSS Uncoated 18
    $94.34
  • A54975 ACT M5 X 0.8 0.194 2-3/8 D4 2 Spiral Point Plug HSS Uncoated 100
    $8.37
  • A54953 ACT M10 X 1.25 0.381 2-15/16 D5 4 Taper, Plug, Bottoming HSS Uncoated 15
    $45.65
  • A54884 ACT M4 X 0.7 0.168 2-1/8 D4 4 Bottoming HSS Uncoated 100
    $6.89
  • A54811 ACT 5/8-11 0.633 8 H3 4 Pulley HSS Uncoated 10
    $121.84
  • A54793 ACT 7/16-14 0.323 3-5/32 H3 3 STI - Spiral Point Plug HSS Uncoated 16
    $24.21
  • A54721 ACT 4-40 0.141 1-7/8 H2 2 Spiral Point Bottoming HSS Uncoated 37
    $13.73
  • A54037 ACT 8-32 0.168 2-1/8 H3 4 Bottoming HSS NIT/ST 24
    $5.74
  • A53944 ACT 4-48 0.141 1-7/8 H2 3 Taper, Plug, Bottoming HSS Uncoated 9
    $20.21
  • A53913 ACT 3-48 0.141 1-13/16 H2 3 Bottoming HSS STEAM OXIDE 47
    $8.42
  • A53885 ACT 2-56 0.141 1-3/4 H1 3 Taper HSS Uncoated 100
    $10.56
  • A79054 ACT 1/2-13 0.3670 3-3/8 H3 4 Taper, Plug, Bottoming HSS TiN Available to Order*
    $89.36
  • A77610 ACT 4-40 0.1410 1-7/8 H2 2 SP/PT Bottom HSS TiN Available to Order*
    $16.82
  • A77525 ACT M3 X 0.5 0.1410 1-15/16 D6 None Bottom HSS Uncoated Available to Order*
    $16.44
  • A77413 ACT 7/16-20 0.3230 6 H3 3 SP/PT Plug HSS ALTiN Available to Order*
    $94.58
  • A77361 ACT 7/16-20 0.3230 3.1563" H3 3 Semi Bottom HSS ZRN Available to Order*
    $46.16
  • A77296 ACT 1/4-28 0.2550 2-1/2 H4 None Plug HSS Uncoated Available to Order*
    $14.94
  • A77214 ACT M5 X 0.8 0.1940 2-3/8 D4 4 Bottom HSS TiN Available to Order*
    $11.34
  • A77177 ACT 3/4-10 0.5900 4-1/4 H3 4 Bottom HSS Uncoated Available to Order*
    $105.08
  • A77176 ACT 3/4-10 0.5900 4-1/4 H3 4 Plug HSS TiN Available to Order*
    $111.82
  • A58010 ACT M10 X 1.25 0.381 2-15/16 D5 4 Taper, Plug, Bottoming HSS TIN Available to Order*
    $81.23
  • A57839 ACT 8-32 0.168 2-1/8 H3 4 Taper HSS TIN 43
    $8.75
  • A57609 ACT M5 X 0.8 0.194 2-3/8 D4 2 Spiral Point Plug HSS TIN 100
    $11.76
  • A55861 ACT 12-24 7.141 1-7/15 H2 3 Hand Bottoming HSS Uncoated 55
    $17.49
  • A55845 ACT M12 X 1.75 0.275 3-3/8 D6 3 High Spiral HSS Uncoated 18
    $49.07
  • A55188 ACT 2-56 0.141 1-3/4 H2 2 Spiral Point Plug HSS ALTiN 21
    $16.83
  • A55010 ACT 3/4-14 0.9063 3-1/4 5 NPT - Interrupted HSS Uncoated 47
    $121.39
  • A54990 ACT 1/2-14 0.6875 3-1/8 4 NPT HSS Uncoated 100
    $55.67
  • A54885 ACT M4.5 X 0.75 0.194 2-3/8 D4 4 Plug HSS Uncoated 100
    $6.89
  • A54812 ACT 5/8-11 0.633 10 H3 4 Pulley HSS Uncoated 4
    $110.71
  • A54794 ACT 7/16-20 0.323 3-5/32 H3 3 STI - Spiral Point Plug HSS Uncoated 14
    $24.12
  • A54034 ACT 8-32 0.168 2-1/8 H3 4 Plug HSS NIT/ST 39
    $5.74
  • A53966 ACT 5-40 0.141 1-15/16 H2 3 Taper, Plug, Bottoming HSS Uncoated 20
    $20.21
  • A53891 ACT 2-56 0.141 1-3/4 H2 3 Taper HSS Uncoated 51
    $9.78
  • A79055 ACT 1/2-20 0.3670 3-3/8 H3 4 Taper, Plug, Bottoming HSS TiN Available to Order*
    $99.27
  • A77468 ACT M5 x 0.5 0.1940 2-3/8 D3 2 SP/PT Plug HSS Uncoated Available to Order*
    $10.38
  • A77381 ACT M3.5 X 0.6 0.1410 2 D7 None Bottom HSS Uncoated Available to Order*
    $14.77
  • A77376 ACT M12 X 1.75 0.2750 3-3/8 D6 3 Semi Bottom HSS ZRN Available to Order*
    $56.46
  • A77297 ACT 1/4-28 0.2550 2-1/2 H4 None Bottom HSS Uncoated Available to Order*
    $14.94
  • A77179 ACT 3/4-16 0.5900 4-1/4 H3 4 Taper HSS Uncoated Available to Order*
    $105.08
  • A77178 ACT 3/4-10 0.5900 4-1/4 H3 4 Bottom HSS TiN Available to Order*
    $111.82
  • A57934 ACT M6 X 1.0 0.255 2-1/2 D5 4 Taper HSS TIN 63
    $13.03
  • A57909 ACT 5-40 0.141 1-15/16 H2 3 Taper, Plug, Bottoming HSS TIN Available to Order*
    $32.39
  • A57863 ACT 8-32 0.168 2-1/8 H3 4 Plug HSS TIN 78
    $8.75
  • A57651 ACT 3/4-14 0.9063 3-1/4 5 NPT - Interrupted HSS STEAM OXIDE 15
    $129.01
  • A57630 ACT 1/2-14 0.6875 3-1/8 4 NPT HSS TIN 14
    $69.31
  • A55862 ACT 1/4-20 0.255 2-1/2 H2 3 Hand Plug HSS Uncoated 20
    $17.78
  • A55829 ACT 1/2-13 0.367 3-3/8 H3 3 High Spiral HSS Uncoated 14
    $47.54
  • A55057 ACT 1/2-13 0.367 6 H3 NC .275 7/16 1-21/32 3 Spiral Point Plug HSS Uncoated 18
    $96.19
  • A55032 ACT 1-1/4-11-1/2 1.3125 4 5 NPTF Dryseal HSS Uncoated 21
    $185.79
  • A54954 ACT M10 X 1.5 0.381 2-15/16 D6 4 Taper, Plug, Bottoming HSS Uncoated 18
    $45.65
  • A54886 ACT M5 X 0.8 0.194 2-3/8 D4 4 Taper HSS Uncoated 85
    $6.89
  • A54813 ACT 5/8-11 0.633 12 H3 4 Pulley HSS Uncoated 15
    $129.67
  • A54795 ACT 1/2-13 0.367 3-3/8 H3 3 STI - Spiral Point Plug HSS Uncoated 33
    $37.19
  • A54722 ACT 5-40 0.141 1-15/16 H2 2 Spiral Point Bottoming HSS Uncoated 25
    $13.73
  • A54568 ACT 2-64 0.141 1-3/4 H1 2 Spiral Point Plug HSS Uncoated 18
    $9.41
  • A53886 ACT 2-56 0.141 1-3/4 H1 3 Plug HSS Uncoated 27
    $10.56
  • A79036 ACT 5/8-11 0.4800 3-13/16 H3 4 Taper, Plug, Bottoming HSS Uncoated Available to Order*
    $139.48
  • A77611 ACT 5-40 0.1410 1-15/16 H2 2 SP/PT Bottom HSS TiN Available to Order*
    $16.82
  • A77469 ACT M5 x 0.5 0.1940 2-3/8 D3 2 SP/PT Plug HSS TiN Available to Order*
    $13.01
  • A77395 ACT M3.5 X 0.6 0.1410 2 D7 None Single Thread HSS TiN Available to Order*
    $18.41
  • A77298 ACT 1/4-28 0.2550 2-1/2 H6 None Plug HSS Uncoated Available to Order*
    $14.94
  • A77181 ACT 3/4-16 0.5900 4-1/4 H3 4 Plug HSS Uncoated Available to Order*
    $105.08
  • A77180 ACT 3/4-16 0.5900 4-1/4 H3 4 Taper HSS TiN Available to Order*
    $111.82
  • A58388 ACT 1-1/4-11-1/2 1.3125 4 5 NPTF Dryseal HSS TIN Available to Order*
    $146.58
  • A57961 ACT M6 X 1.0 0.255 2-1/2 D5 4 Plug HSS TIN 32
    $13.03
  • A57887 ACT 8-32 0.168 2-1/8 H3 4 Bottoming HSS TIN 16
    $8.75
  • A57652 ACT 3/4-14 0.9063 3-1/4 5 NPT - Interrupted HSS TIN 13
    $146.83
  • A57629 ACT 1/2-14 0.6875 3-1/8 4 NPT HSS STEAM OXIDE 37
    $60.86
  • A55863 ACT 1/4-20 8.141 1-7/16 H2 3 Hand Bottoming HSS Uncoated 100
    $17.78
  • A55830 ACT 1/2-20 0.367 3-3/8 H3 3 High Spiral HSS Uncoated 24
    $47.54
  • A55058 ACT 1/2-20 0.367 6 H3 NF .275 7/16 1-21/32 3 Spiral Point Plug HSS Uncoated 26
    $96.19
  • A54887 ACT M5 X 0.8 0.194 2-3/8 D4 4 Plug HSS Uncoated 100
    $6.89
  • A54814 ACT 3/4-10 0.759 10 H3 4 Pulley HSS Uncoated 8
    $179.07
  • A54796 ACT 1/2-20 0.367 3-3/8 H3 3 STI - Spiral Point Plug HSS Uncoated 19
    $37.19

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

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