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
    A57836 ACT 4-40 0.141 1-7/8 H2 3 Taper HSS TIN Available to Order*
    $10.44
  • A55900 ACT 6-32 0.141 2 H11 2 Spiral Point Plug HSS Uncoated 100
    $9.45
  • A55852 ACT 6-40 0.141 2 H1 3 Hand Plug HSS Uncoated 58
    $16.62
  • A55840 ACT M4.5 X 0.75 0.194 2-3/8 D4 3 High Spiral HSS Uncoated 50
    $17.49
  • A55072 ACT 1/2-14 6 4 NPT HSS Uncoated 22
    $180.35
  • A55066 ACT 1/2-14 0.6875 3-1/8 4 NPS HSS Uncoated 12
    $89.47
  • A55038 ACT 3/8-18 0.7 2-9/16 5 NPTF Dryseal - Interrupted HSS Uncoated 35
    $41.73
  • A55027 ACT 1/4-18 0.5625 2-7/16 4 NPTF Dryseal HSS Uncoated 85
    $29.24
  • A55007 ACT 1/4-18 0.5625 2-7/16 5 NPT - Interrupted HSS Uncoated 100
    $41.44
  • A54987 ACT 1/8-27 0.4375 2-1/8 4 NPT HSS Uncoated 100
    $23.96
  • A54972 ACT M3.5 X 0.6 0.141 2 D4 2 Spiral Point Plug HSS Uncoated 100
    $8.37
  • A54949 ACT M5 X 0.8 0.194 2-3/8 D4 4 Taper, Plug, Bottoming HSS Uncoated 23
    $23.14
  • A54879 ACT M3 X 0.5 0.141 1-15/16 D3 3 Plug HSS Uncoated 100
    $8.46
  • A54803 ACT 3/8-16 0.381 10 H3 4 Pulley HSS Uncoated 4
    $98.63
  • A54785 ACT 10-32 0.194 2-3/8 H2 2 STI - Spiral Point Plug HSS Uncoated 16
    $19.22
  • A54735 ACT 5/16-18 0.318 2-23/32 H3 2 Spiral Point Bottoming HSS Uncoated 100
    $12.42
  • A54560 ACT 1-64 0.141 1-11/16 H2 2 Spiral Point Plug HSS Uncoated 60
    $13.73
  • A54552 ACT 3/8-16 0.381 2-15/16 H11 4 Plug HSS Uncoated 24
    $15.01
  • A53892 ACT 2-56 0.141 1-3/4 H2 3 Taper HSS STEAM OXIDE 47
    $10.52
  • A53873 ACT 1-64 0.141 1-11/16 H1 2 Plug HSS Uncoated 83
    $11.47
  • A79030 ACT 3/8-16 0.3810 2-15/16 H3 4 Taper, Plug, Bottoming HSS Uncoated Available to Order*
    $39.04
  • A77604 ACT 1/2-14 0.6875 (11/16)" 3-1/8 nan 4 nan HSS TiN Available to Order*
    $84.08
  • A77599 ACT 1-1/2-11-1/2 1.5000 (1-1/2)" 4-1/4 nan 7 nan HSS NITRIDE & STEAM OXIDE Available to Order*
    $244.86
  • A77560 ACT 1-3/8-8 1.1080 6.0625" H5 4 Bottom HSS Uncoated Available to Order*
    $233.40
  • A77521 ACT M2 X 0.4 0.1410 1-3/4 D5 None Bottom HSS TiN Available to Order*
    $20.01
  • A77409 ACT 5/16-24 0.2400 6 H3 2 SP/PT Plug HSS ALTiN Available to Order*
    $79.56
  • A77357 ACT 5/16-24 0.3180 2.7188" H3 3 Semi Bottom HSS ZRN Available to Order*
    $30.17
  • A77333 ACT 6-32 0.1410 2 H2 3 Bottom HSS Uncoated Available to Order*
    $19.51
  • A77260 ACT 8-32 0.1680 2-1/8 H3 4 Bottom HSS TiN Available to Order*
    $24.61
  • A77212 ACT M3 X 0.5 0.1410 1-15/16 D3 3 Bottom HSS TiN Available to Order*
    $13.73
  • A58410 ACT 1/2-14 6 4 NPT HSS TIN 5
    $182.74
  • A58404 ACT 1/2-14 0.6875 3-1/8 4 NPS HSS TIN 1
    $124.60
  • A58394 ACT 3/8-18 0.7 2-9/16 5 NPTF Dryseal - Interrupted HSS TIN 13
    $70.34
  • A58383 ACT 1/4-18 0.5625 2-7/16 4 NPTF Dryseal HSS TIN 17
    $41.03
  • A57860 ACT 4-40 0.141 1-7/8 H2 3 Plug HSS TIN 6
    $10.44
  • A57645 ACT 1/4-18 0.5625 2-7/16 5 NPT - Interrupted HSS STEAM OXIDE 54
    $44.99
  • A57624 ACT 1/8-27 0.4375 2-1/8 4 NPT HSS TIN 26
    $31.96
  • A57606 ACT M3.5 X 0.6 0.141 2 D4 2 Spiral Point Plug HSS TIN 19
    $11.76
  • A55901 ACT 8-32 0.168 2-1/8 H11 2 Spiral Point Plug HSS Uncoated 74
    $9.45
  • A55853 ACT 6-40 3.141 1-7/11 H1 3 Hand Bottoming HSS Uncoated 71
    $16.62
  • A55841 ACT M5 X 0.8 0.194 2-3/8 D4 3 High Spiral HSS Uncoated 26
    $17.49
  • A54880 ACT M3 X 0.5 0.141 1-15/16 D3 3 Bottoming HSS Uncoated 100
    $8.46
  • A54852 ACT 1/4-20 0.255 2-1/2 H3 2 Bottoming HSS TiN 37
    $19.75
  • A54804 ACT 7/16-14 0.444 6 H3 4 Pulley HSS Uncoated 7
    $50.10
  • A54786 ACT 12-24 0.22 2-3/8 H2 2 STI - Spiral Point Plug HSS Uncoated 59
    $19.22
  • A54736 ACT 5/16-24 0.318 2-23/32 H3 2 Spiral Point Bottoming HSS Uncoated 74
    $12.42
  • A54561 ACT 1-64 0.141 1-11/16 H2 2 Spiral Point Plug HSS STEAM OXIDE 41
    $10.44
  • A54553 ACT 7/16-14 0.323 3-5/32 H11 4 Plug HSS Uncoated 25
    $22.52
  • A53904 ACT 2-64 0.141 1-3/4 H2 3 Taper, Plug, Bottoming HSS Uncoated 5
    $24.99
  • A53894 ACT 2-56 0.141 1-3/4 H2 3 Plug HSS STEAM OXIDE 72
    $10.52
  • A79031 ACT 3/8-24 0.3810 2-15/16 H3 4 Taper, Plug, Bottoming HSS Uncoated Available to Order*
    $39.04
  • A77624 ACT 5/16-18 0.3180 2.7188" H3 2 SP/PT Bottom HSS TiN Available to Order*
    $16.58
  • A77590 ACT 3/4-14 0.9063 3-1/4 nan 5 nan HSS Uncoated Available to Order*
    $106.42
  • A77561 ACT 1-1/2-8 1.2330 6-3/8 H5 4 Taper HSS Uncoated Available to Order*
    $252.65
  • A77550 ACT M3 X 0.6 0.1410 1-15/16 D2 3 Taper HSS Uncoated Available to Order*
    $10.38
  • A77380 ACT M2.5 X .45 0.1410 1-13/16 D6 None Bottom HSS Uncoated Available to Order*
    $16.44
  • A77372 ACT M5 X 0.8 0.1940 2-3/8 D4 3 Semi Bottom HSS ZRN Available to Order*
    $22.60
  • A77261 ACT 10-24 0.1940 2-3/8 H3 4 Taper HSS TiN Available to Order*
    $30.43
  • A77257 ACT 8-32 0.1680 2-1/8 H3 4 Plug HSS Uncoated Available to Order*
    $22.40
  • A57957 ACT M3.5 X 0.6 0.141 2 D4 3 Plug HSS TIN 6
    $11.76
  • A57884 ACT 4-40 0.141 1-7/8 H2 3 Bottoming HSS TIN 14
    $10.44
  • A57646 ACT 1/4-18 0.5625 2-7/16 5 NPT - Interrupted HSS TIN 43
    $52.08
  • A57623 ACT 1/8-27 0.4375 2-1/8 4 NPT HSS STEAM OXIDE 31
    $26.56
  • A55902 ACT 10-24 0.194 2-3/8 H11 2 Spiral Point Plug HSS Uncoated 23
    $10.39
  • A55854 ACT 8-32 0.168 2-1/8 H2 3 Hand Plug HSS Uncoated 56
    $16.99
  • A55825 ACT 3/8-16 0.381 2-15/16 H3 3 High Spiral HSS Uncoated 36
    $26.56
  • A55067 ACT 3/4-14 0.9063 3-1/4 5 NPS HSS Uncoated 11
    $124.48
  • A55053 ACT 3/8-16 0.275 6 H3 NC .206 7/16 1-1/4 3 Spiral Point Plug HSS Uncoated 16
    $79.91
  • A55039 ACT 1/2-14 0.6875 3-1/8 5 NPTF Dryseal - Interrupted HSS Uncoated 21
    $66.39
  • A55028 ACT 3/8-18 0.7 2-9/16 4 NPTF Dryseal HSS Uncoated 3
    $38.47
  • A54973 ACT M4 X 0.7 0.168 2-1/8 D4 2 Spiral Point Plug HSS Uncoated 100
    $8.37
  • A54950 ACT M6 X 1.0 0.255 2-1/2 D5 4 Taper, Plug, Bottoming HSS Uncoated 22
    $23.14
  • A54853 ACT 1/4-20 0.255 2-1/2 H4 2 Bottoming HSS TiN 14
    $19.75
  • A54805 ACT 7/16-14 0.444 8 H3 4 Pulley HSS Uncoated 3
    $65.52
  • A54787 ACT 1/4-20 0.255 2-1/2 H2 2 STI - Spiral Point Plug HSS Uncoated 46
    $19.22
  • A54562 ACT 1-72 0.141 1-11/16 H1 2 Spiral Point Plug HSS Uncoated 100
    $13.73
  • A54554 ACT 1/2-13 0.367 3-3/8 H11 4 Plug HSS Uncoated 19
    $25.61
  • A53914 ACT 3-48 0.141 1-13/16 H2 3 Taper, Plug, Bottoming HSS Uncoated 12
    $23.67
  • A53896 ACT 2-56 0.141 1-3/4 H2 3 Bottoming HSS STEAM OXIDE 27
    $10.52
  • A53875 ACT 1-64 0.141 1-11/16 H1 2 Bottoming HSS Uncoated 43
    $11.47
  • A79052 ACT 3/8-16 0.3810 2-15/16 H3 4 Taper, Plug, Bottoming HSS TiN Available to Order*
    $61.94
  • A77625 ACT 5/16-24 0.3180 2.7188" H3 2 SP/PT Bottom HSS TiN Available to Order*
    $16.58
  • A77605 ACT 3/4-14 0.9063 3-1/4 nan 5 nan HSS TiN Available to Order*
    $117.68
  • A77562 ACT 1-1/2-8 1.2330 6-3/8 H5 4 Plug HSS Uncoated Available to Order*
    $252.65
  • A77551 ACT M3 X 0.6 0.1410 1-15/16 D2 3 Plug HSS Uncoated Available to Order*
    $10.38
  • A77393 ACT M2.5 X 0.45 0.1410 1-13/16 D6 None Single Thread HSS TiN Available to Order*
    $20.01
  • A77262 ACT 10-24 0.1940 2-3/8 H3 4 Plug HSS TiN Available to Order*
    $30.43
  • A77259 ACT 8-32 0.1680 2-1/8 H3 4 Bottom HSS Uncoated Available to Order*
    $22.40
  • A58405 ACT 3/4-14 0.9063 3-1/4 5 NPS HSS TIN 2
    $174.28
  • A58395 ACT 1/2-14 0.6875 3-1/8 5 NPTF Dryseal - Interrupted HSS TIN 5
    $99.45
  • A58384 ACT 3/8-18 0.7 2-9/16 4 NPTF Dryseal HSS TIN 4
    $53.89
  • A57932 ACT M4 X 0.7 0.168 2-1/8 D4 4 Taper HSS TIN 62
    $11.76
  • A57837 ACT 5-40 0.141 1-15/16 H2 3 Taper HSS TIN 54
    $10.44
  • A57607 ACT M4 X 0.7 0.168 2-1/8 D4 2 Spiral Point Plug HSS TIN 100
    $11.76
  • A55903 ACT 10-32 0.194 2-3/8 H11 2 Spiral Point Plug HSS Uncoated 35
    $10.39
  • A55855 ACT 8-32 4.141 1-7/12 H2 3 Hand Bottoming HSS Uncoated 15
    $16.99
  • A55842 ACT M6 X 1.0 0.255 2-1/2 D5 3 High Spiral HSS Uncoated 17
    $19.22
  • A55826 ACT 3/8-24 0.381 2-15/16 H3 3 High Spiral HSS Uncoated 23
    $26.56
  • A55054 ACT 3/8-24 0.275 6 H3 NF .206 7/16 1-1/4 3 Spiral Point Plug HSS Uncoated 10
    $79.91
  • A55008 ACT 3/8-18 0.7 2-9/16 5 NPT - Interrupted HSS Uncoated 22
    $52.20

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

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