Threading Taps

Threading taps are a tool used to create screw threads (tapping) into a pre-drilled hole, to create a clean fitting for bolts in metals and plastics. Used in engineering and manufacturing, threading taps work like a drill but due to the unique shape of a tap, when screwed into a piece of material, screw threads are created. Threading taps must be used in a predrilled hole and cannot be used for drilling entire holes.


The difference between taps and dies is that taps are used to create or repair threads in holes which is ideal for nuts. Dies are used to cut threads on materials such as steel rods to allow a fitting to be screwed on and attached (threading). The tap is designed for internal thread cutting, so this would be used on the fastener hole or a nut, whereas a die is used for the external thread, like on a bolt. In other words, tapping uses the tap part of the set and creates internal threads and threading is the process used by the die to cut external threads.


Threading Taps are available in HSS (high-speed steel) and carbide and can be used by hand or machine. Our range of threading taps offers the best tool for every machining method or process to meet all your requirements. Threading taps can be used with a tap wrench or power tool and are available in various sizes to accommodate a range of applications.


Taps can be used by machinists in different ways for different applications:


  • Taper taps or starter taps, are used to initially start a new thread with the first 7-10 threads having a flatter profile than those further up the shaft.

  • Plug taps are similar to taper taps but only have 3-5 starting rows ground down leaving more shaft to create a thread.

  • Bottom taps are square in profile with no ground down threads and are used after a taper or plug tap has been used. Their full length cutting shape allow for threads to be cut at the very bottom of a hole for maximum thread length.

  • Spiral flute taps – for blind hole applications

  • Spiral point taps – push chips forward, ideal for through-hole applications

  • Straight flute taps – most commonly, designed for short chipping materials

  • Forming taps – compresses to produce a thread rather than cutting

  • Taps come in both Metric and Imperial dimensions and can have different shank types. Threading taps are used in conjunction with a tap wrench so always consider the maximum side tap your wrench can hold when purchasing.

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Description Price Set Type Thread Size Type Pitch Thread Standard Thread Direction Number of Pieces Overall Length Shank Standard Hand/Machine Tap Material Shank Diameter Shank Type Ring Colour
RS Stock No. 152-283
BrandRS PRO
MYR60.63
Each
units
Threading Tap M12 Straight Flute, Taper 1.75mm Metric - 1 - - Hand Tap HSS - - -
RS Stock No. 215-568
BrandRS PRO
MYR98.09
Each
units
Hand Tap M8 Hand Tap - - - 3 - - - HSS - - -
RS Stock No. 215-580
BrandRS PRO
MYR95.93
Each
units
Hand Tap M4 Hand Tap - - - 3 - - - HSS - - -
RS Stock No. 669-9404
BrandRS PRO
MYR344.33
1 Set
Set(s)
Threading Tap Set - - - - - 12 - - - HSS - - -
RS Stock No. 340-6530
BrandRS PRO
MYR1,207.88
1 Set
Set(s)
Hand Tap M2.6 Hand Tap - - - 22 - - - HSS - - -
RS Stock No. 151-993
BrandRS PRO
MYR134.81
Each
units
Threading Tap M12 Spiral Flute, Second 1.75mm Metric - 1 - - - HSS - - -
RS Stock No. 669-9394
BrandRS PRO
MYR263.95
1 Set
Set(s)
1/4 in Hexagon Drive Tap M10 1/4 in Hexagon Drive Tap - - - 6 - - - HSS - - -
RS Stock No. 152-211
BrandRS PRO
MYR25.70
Each
units
Threading Tap M12 Straight Flute, Plug 1.75mm Metric - 1 - - Hand Tap HSS - - -
RS Stock No. 215-552
BrandRS PRO
MYR83.88
Each
units
Hand Tap M3 Hand Tap - - - 3 - - - HSS - - -
RS Stock No. 455-974
BrandRS PRO
MYR26.45
Each
units
Threading Tap #6-32 Spiral Point - UNC - 1 50 mm - - HSS 3.55 mm - -
RS Stock No. 340-6546
BrandRS PRO
MYR282.21
1 Set
Set(s)
Spiral Point Tap M12 Spiral Point Tap - - - 7 - - - HSS - - -
RS Stock No. 668-1113
BrandRS PRO
MYR454.51
1 Set
Set(s)
Left hand thread; Tap M12 Left Handed Thread - - - 7 - - - HSS - - -
RS Stock No. 152-491
BrandRS PRO
MYR70.40
1 Set
Set(s)
Straight Flute Tap M2 Straight Flute Tap - - - 2 - - - HSS - - -
RS Stock No. 215-524
BrandRS PRO
MYR180.28
Each
units
Hand Tap M12 Hand Tap - - - 3 - - - HSS - - -
RS Stock No. 455-936
BrandRS PRO
MYR60.63
Each
units
Threading Tap M2 Spiral Point 0.4mm Metric - 1 41 mm - - HSS 2.5 mm - -
RS Stock No. 427-963
BrandRS PRO
MYR398.35
Each
units
Spiral Point Tap M12 Spiral Point Tap - - - 7 - - - HSS - - -
RS Stock No. 151-987
BrandRS PRO
MYR71.75
Each
units
Threading Tap M6 Spiral Flute, Second 1.0mm Metric - 1 - - - HSS - - -
RS Stock No. 668-1074
BrandRS PRO
MYR106.51
1 Set
Set(s)
Threading Tap M5 Straight Flute 0.8mm Metric Left Hand 1 58 mm - - HSS 5 mm - -
RS Stock No. 673-4702
BrandRS PRO
MYR794.36
1 Set
Set(s)
Threading Tap Set - - - - - 22 - - - HSS - - -
RS Stock No. 151-842
BrandRS PRO
MYR72.62
1 Set
Set(s)
Straight Flute Tap M4 Straight Flute Tap - - - 2 - - - HSS - - -
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