Threading Taps

Threading taps are used to create threads for bolts in materials like metals and plastics. Most commonly used in engineering and manufacturing, threading taps work similar to 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.

Types of Threading Taps

Most commonly classified by three types, taps can be used in different ways for different applications.
•Taper taps, sometimes called 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 unlike a taper tap, plug taps 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. Bottom taps full length cutting shape allow for threads to be cut at the very bottom of a hole for maximum thread length.



Taps come in a range of sizes in both Metric and Imperial dimension and can also 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 Thread Size Type Pitch Thread Standard Thread Direction Overall Length Hand/Machine Tap Material Shank Diameter Shank Type Ring Colour For Use With Class of Fit
RS Stock No. 668-1100
BrandRS PRO
€13.95
1 Set
Set(s)
1/4-20 Straight Flute - UNC - 56 mm Hand Tap HSS 6 mm Plain - - -
RS Stock No. 152-536
BrandRS PRO
€8.32
Each
units
M6 Straight Flute, Taper 1mm Metric - - Hand Tap HSS - Plain - - -
RS Stock No. 668-1078
BrandRS PRO
€23.05
1 Set
Set(s)
M6 Straight Flute 1mm Metric Left Hand 66 mm - HSS 6.3 mm Plain - - -
RS Stock No. 152-300
BrandRS PRO
€5.98
Each
units
M5 Straight Flute, Taper 0.8mm Metric - - Hand Tap HSS - Plain - - -
RS Stock No. 455-924
BrandRS PRO
€8.95
Each
units
#10-24 Spiral Point - UNC - 58 mm Machine Tap HSS 5 mm Plain - - -
RS Stock No. 455-902
BrandRS PRO
€9.52
Each
units
M3 Spiral Point 0.5mm Metric - 48 mm - HSS 3.15 mm Plain - - -
RS Stock No. 152-249
BrandRS PRO
€12.23
Each
units
M16 Straight Flute, Plug 2mm Metric - - Hand Tap HSS - Plain - - -
RS Stock No. 152-558
BrandRS PRO
€8.32
Each
units
M2.5 Straight Flute, Plug 0.45mm Metric - - Hand Tap HSS - Plain - - -
RS Stock No. 152-316
BrandRS PRO
€6.56
Each
units
M4 Straight Flute, Taper 0.7mm Metric - - Hand Tap HSS - Plain - - -
RS Stock No. 455-930
BrandRS PRO
€7.64
Each
units
M6 Spiral Point 1mm Metric - 66 mm - HSS 6.3 mm Plain - - -
RS Stock No. 152-570
BrandRS PRO
€8.07
Each
units
M2.5 Straight Flute, Taper 0.45mm Metric - - Hand Tap HSS - Plain - - -
RS Stock No. 455-974
BrandRS PRO
€9.82
Each
units
#6-32 Spiral Point - UNC - 50 mm - HSS 3.55 mm Plain - - -
RS Stock No. 522-7575
BrandRS PRO
€19.33
Each
units
M10 Second, Straight Flute 1mm Metric Fine - 76 mm - HSS 9.95 mm Plain - - 6H
RS Stock No. 152-205
BrandRS PRO
€12.23
Each
units
M16 Straight Flute, Taper 2mm Metric - - Hand Tap HSS - Plain - - -
RS Stock No. 152-198
BrandRS PRO
€12.23
Each
units
M16 Straight Flute, Second 2mm Metric - - Hand Tap HSS - Plain - - -
RS Stock No. 522-7569
BrandRS PRO
€14.98
Each
units
M8 Second, Straight Flute 1mm Metric Fine - 66 mm - HSS 6.3 mm Plain - - 6H
RS Stock No. 152-081
BrandRS PRO
€6.80
Each
units
M3 Straight Flute, Taper 0.5mm Metric - - Hand Tap HSS - Plain - - -
RS Stock No. 152-283
BrandRS PRO
€10.71
Each
units
M12 Straight Flute, Taper 1.75mm Metric - - Hand Tap HSS - Plain - - -
RS Stock No. 455-968
BrandRS PRO
€8.79
Each
units
1/4-20 Spiral Point - UNC - 66 mm - HSS 6.3 mm Plain - - -
RS Stock No. 152-227
BrandRS PRO
€10.71
Each
units
M12 Straight Flute, Second 1.75mm Metric - - Hand Tap HSS - Plain - - -
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