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. 508-9626
Mfr. Part No.05975
BrandEXACT
MYR367.13
Each
units
Threading Tap M32 Straight Flute 1.5mm Metric Fine - 1 51 mm - - HSS - - -
RS Stock No. 174-0123
Mfr. Part No.L002E000M3XA002
BrandDormer
MYR98.85
1 Set
Set(s)
Threading Tap Set - Spiral Point - - - 2 - ISO Machine Tap HSS-E - - -
RS Stock No. 602-2107
Mfr. Part No.20181
BrandEVENTUS
MYR39.72
Each
units
Threading Tap G1/8-28 Short Machine - BSP - 1 63 mm - - HSS - - -
RS Stock No. 240-3237
Mfr. Part No.E500 6.0 X 1.00 3FL TPR
BrandDormer
MYR73.15
Each
units
Threading Tap M6 Straight Flute, Taper 1.0mm Metric Right Hand 1 66 mm - Machine Tap HSS 6.3 mm - -
RS Stock No. 299-9053
Mfr. Part No.E200-M10
BrandDormer
MYR101.66
Each
units
Threading Tap M10 Straight Flute 1.5mm Metric Right Hand 1 100 mm - Machine Tap HSS-E 10 mm - -
RS Stock No. 705-9472
Mfr. Part No.EP01 M5
BrandDormer
MYR125.94
Each
units
Threading Tap M5 Spiral Flute 0.8mm Metric Right Hand 1 70 mm - Machine Tap HSS-XS1 6 mm - -
RS Stock No. 300-0233
Mfr. Part No.E513-M12/1,00
BrandDormer
MYR182.63
Each
units
Threading Tap M12 Straight Flute 1.0mm Metric Fine Right Hand 1 89 mm - Machine Tap HSS 9 mm - -
RS Stock No. 299-8634
Mfr. Part No.E101-M16,00
BrandDormer
MYR869.27
Each
units
Threading Tap Set M16 Straight Flute 2.0mm Metric Left Hand 3 80 mm - Hand Tap HSS 12 mm - -
RS Stock No. 813-0222
Mfr. Part No.E239M10
BrandDormer
MYR285.20
Each
units
Threading Tap M10 Spiral Flute 1.5mm Metric Right Hand 1 100 mm - Machine Tap HSS 10.0 mm - -
RS Stock No. 752-5269
Mfr. Part No.EX00M2
BrandDormer
MYR146.75
Each
units
Threading Tap M2 Spiral Flute 0.4mm Metric Right Hand 1 45 mm - Machine Tap HSS-E 2.8 mm - -
RS Stock No. 813-0263
Mfr. Part No.E241M10
BrandDormer
MYR265.83
Each
units
Threading Tap M10 Spiral Point 1.5mm Metric Right Hand 1 100 mm - Machine Tap HSS 10.0 mm - -
RS Stock No. 174-0119
Mfr. Part No.L001EX00M6XA002
BrandDormer
MYR122.73
1 Set
Set(s)
Threading Tap Set - Spiral Flute - - - 2 - DIN Machine Tap HSS-E - - -
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