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. 602-2113
Mfr. Part No.20182
BrandEVENTUS
SGD13.28
Each
units
Threading Tap G1/4-19 Short Machine - BSP - 1 70 mm - - HSS - - -
RS Stock No. 509-0159
Mfr. Part No.03448
BrandEXACT
SGD234.80
1 Set
Set(s)
Machine tap M12 Machine tap - - - 6 - - - HSSG-E - - -
RS Stock No. 178-939
Mfr. Part No.7915 UNC
BrandDormer
SGD482.75
1 Set
Set(s)
Threading Tap Set - - - - - 22 - - - HSS - - -
RS Stock No. 508-9660
Mfr. Part No.05972
BrandEXACT
SGD37.64
Each
units
Threading Tap M16 Straight Flute 1.5mm Metric Fine - 1 51 mm - - HSS - - -
RS Stock No. 469-3347
Mfr. Part No.7910 E500
BrandDormer
SGD129.01
1 Set
Set(s)
Straight Flute Tap M10 Straight Flute Tap - - - 6 - - - HSS - - -
RS Stock No. 673-4702
BrandRS PRO
SGD261.02
1 Set
Set(s)
Threading Tap Set - - - - - 22 - - - HSS - - -
RS Stock No. 215-580
BrandRS PRO
SGD30.71
Each
units
Hand Tap M4 Hand Tap - - - 3 - - - HSS - - -
RS Stock No. 152-069
BrandRS PRO
SGD14.89
Each
units
Threading Tap M3 Plug, Straight Flute 0.5mm Metric - 1 - - Hand Tap HSS - - -
RS Stock No. 241-4063
Mfr. Part No.E500 4.0 X 0.70 3FL SET3
BrandDormer
SGD51.64
1 Set
Set(s)
Straight Flute Tap M4 Straight Flute Tap - - - 3 - - - HSS - - -
RS Stock No. 522-7676
BrandRS PRO
SGD77.21
Each
units
Threading Tap M30 Second, Straight Flute 1.5mm Metric Fine - 1 130 mm - - HSS 19.9 mm - -
RS Stock No. 152-542
BrandRS PRO
SGD15.30
Each
units
Threading Tap M6 Plug, Straight Flute 1.0mm Metric - 1 - - Hand Tap HSS - - -
RS Stock No. 152-536
BrandRS PRO
SGD17.83
Each
units
Threading Tap M6 Straight Flute, Taper 1.0mm Metric - 1 - - Hand Tap HSS - - -
RS Stock No. 705-9450
Mfr. Part No.EX01 M10
BrandDormer
SGD57.53
Each
units
Threading Tap M10 Spiral flute 1.5mm Metric Right Hand 1 100 mm - Machine Tap HSS-E 10 mm - -
RS Stock No. 241-4120
Mfr. Part No.E500 12.0 X 1.75 3FL SET3
BrandDormer
SGD104.13
1 Set
Set(s)
Straight Flute Tap M12 Straight Flute Tap - - - 3 - - - HSS - - -
RS Stock No. 455-974
BrandRS PRO
SGD18.04
Each
units
Threading Tap #6-32 Spiral Point - UNC - 1 50 mm - - HSS 3.55 mm - -
RS Stock No. 178-923
Mfr. Part No.7915 UNF
BrandDormer
SGD524.60
1 Set
Set(s)
Threading Tap Set - - - - - 22 - - - HSS - - -
RS Stock No. 508-9446
Mfr. Part No.05910
BrandEXACT
SGD104.09
1 Set
Set(s)
Combi Tap M10 Combi Tap - - - 7 - - - HSS - - -
RS Stock No. 299-8820
Mfr. Part No.E105-M14/1,00
BrandDormer
SGD104.85
Each
units
Threading Tap Set M14 Straight Flute 1.0mm Metric Right Hand 2 70 mm - Hand Tap HSS 11 mm - -
RS Stock No. 152-384
BrandRS PRO
SGD13.65
Each
units
Threading Tap M5 Plug, Straight Flute 0.8mm Metric - 1 - - Hand Tap HSS - - -
RS Stock No. 215-568
BrandRS PRO
SGD40.83
Each
units
Hand Tap M8 Hand Tap - - - 3 - - - HSS - - -