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 Material Shank Diameter Shank Type Ring Colour For Use With Class of Fit
RS Stock No. 455-908
BrandRS PRO
MYR19.35
Each
units
M2.5 Spiral Point 0.45mm Metric - 44.5 mm HSS 2.8 mm Plain - - -
RS Stock No. 152-564
BrandRS PRO
MYR13.96
Each
units
M2.5 Straight Flute, Second 0.45mm Metric Coarse - - HSS - Plain - - -
RS Stock No. 668-1071
BrandRS PRO
MYR42.31
1 Set
Set(s)
M4 Straight Flute 0.7mm Metric Left Hand 53 mm HSS 4 mm Plain - - -
RS Stock No. 455-970
BrandRS PRO
MYR30.87
Each
units
#4-40 Spiral Point - UNC - 48 mm HSS 3.15 mm Plain - - -
RS Stock No. 455-895
BrandRS PRO
MYR17.86
Each
units
M4 Spiral Point 0.7mm Metric - 53 mm HSS 4 mm Plain - - -
RS Stock No. 522-7531
BrandRS PRO
MYR34.51
Each
units
M5 Second, Straight Flute 0.5mm Metric Fine - 60 mm HSS 5 mm Plain - - 6H
RS Stock No. 152-283
BrandRS PRO
MYR29.03
Each
units
M12 Straight Flute, Taper 1.75mm Metric Coarse - - HSS - Plain - - -
RS Stock No. 455-936
BrandRS PRO
MYR28.49
Each
units
M2 Spiral Point 0.4mm Metric - 41 mm HSS 2.5 mm Plain - - -
RS Stock No. 152-211
BrandRS PRO
MYR27.30
Each
units
M12 Straight Flute, Plug 1.75mm Metric Coarse - - HSS - Plain - - -
RS Stock No. 151-993
BrandRS PRO
MYR64.01
Each
units
M12 Spiral Flute, Second 1.75mm Metric Coarse - - HSS - Plain - - -
RS Stock No. 151-987
BrandRS PRO
MYR34.02
Each
units
M6 Spiral Flute, Second 1mm Metric Coarse - - HSS - Plain - - -
RS Stock No. 455-974
BrandRS PRO
MYR27.03
Each
units
#6-32 Spiral Point - UNC - 50 mm HSS 3.55 mm Plain - - -
RS Stock No. 152-120
BrandRS PRO
MYR24.86
Each
units
M2 Straight Flute, Plug 0.4mm Metric Coarse - - HSS - Plain - - -
RS Stock No. 152-259
BrandRS PRO
MYR40.63
Each
units
M2.5 Spiral Flute, Second 0.45mm Metric Coarse - - HSS - Plain - - -
RS Stock No. 455-980
BrandRS PRO
MYR14.92
Each
units
#2-56 Spiral Point - UNC - 44.5 mm HSS 2.8 mm Plain - - -
RS Stock No. 668-1074
BrandRS PRO
MYR65.28
1 Set
Set(s)
M5 Straight Flute 0.8mm Metric Left Hand 58 mm HSS 5 mm Plain - - -
RS Stock No. 668-1107
BrandRS PRO
MYR68.36
1 Set
Set(s)
7/16-14 Straight Flute - UNC - 86 mm HSS 8 mm Plain - - -
RS Stock No. 152-536
BrandRS PRO
MYR14.27
Each
units
M6 Straight Flute, Taper 1mm Metric Coarse - - HSS - Plain - - -
RS Stock No. 522-7569
BrandRS PRO
MYR37.62
Each
units
M8 Second, Straight Flute 1mm Metric Fine - 66 mm HSS 6.3 mm Plain - - 6H
RS Stock No. 152-003
BrandRS PRO
MYR52.38
Each
units
M10 Spiral Flute, Second 1.5mm Metric Coarse - - HSS - Plain - - -
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