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. 455-974
BrandRS PRO
PHP315.88
Each
units
#6-32 Spiral Point - UNC - 50 mm HSS 3.55 mm Plain - - -
RS Stock No. 455-902
BrandRS PRO
PHP268.55
Each
units
M3 Spiral Point 0.5mm Metric - 48 mm HSS 3.15 mm Plain - - -
RS Stock No. 455-908
BrandRS PRO
PHP226.09
Each
units
M2.5 Spiral Point 0.45mm Metric - 44.5 mm HSS 2.8 mm Plain - - -
RS Stock No. 427-947
BrandRS PRO
PHP1,816.38
Each
units
PG11-18 Straight Flute - PG - 80 mm HSS 14 mm Plain - - -
RS Stock No. 427-957
BrandRS PRO
PHP909.61
Each
units
PG7-20 Straight Flute - PG - 70 mm HSS 9 mm Plain - - -
RS Stock No. 522-7610
BrandRS PRO
PHP687.56
Each
units
M14 Second, Straight Flute 1.5mm Metric Fine - 95 mm HSS 11.1 mm Plain - - 6H
RS Stock No. 152-299
BrandRS PRO
PHP129.86
Each
units
M4 Straight Flute, Plug 0.7mm Metric Coarse - - HSS - Plain - - -
RS Stock No. 668-1103
BrandRS PRO
PHP755.92
1 Set
Set(s)
3/8-16 Straight Flute - UNC - 70 mm HSS 7 mm Plain - - -
RS Stock No. 668-1078
BrandRS PRO
PHP715.07
1 Set
Set(s)
M6 Straight Flute 1mm Metric Left Hand 66 mm HSS 6.3 mm Plain - - -
RS Stock No. 152-564
BrandRS PRO
PHP162.99
Each
units
M2.5 Straight Flute, Second 0.45mm Metric Coarse - - HSS - Plain - - -
RS Stock No. 522-7632
BrandRS PRO
PHP961.38
Each
units
M18 Second, Straight Flute 1mm Metric Fine - 97 mm HSS 13.8 mm Plain - - 6H
RS Stock No. 152-508
BrandRS PRO
PHP260.06
Each
units
M3 Spiral Flute, Second 0.5mm Metric Coarse - - HSS - Plain - - -
RS Stock No. 668-1071
BrandRS PRO
PHP549.24
1 Set
Set(s)
M4 Straight Flute 0.7mm Metric Left Hand 53 mm HSS 4 mm Plain - - -
RS Stock No. 455-918
BrandRS PRO
PHP356.32
Each
units
M10 Spiral Point 1.5mm Metric - 80 mm HSS 10 mm Plain - - -
RS Stock No. 522-7654
BrandRS PRO
PHP1,214.56
Each
units
M20 Second, Straight Flute 1.5mm Metric Fine - 112 mm HSS 13.95 mm Plain - - 6H
RS Stock No. 455-914
BrandRS PRO
PHP393.53
Each
units
5/16-18 Spiral Point - UNC - 72 mm HSS 8 mm Plain - - -
RS Stock No. 522-7581
BrandRS PRO
PHP451.37
Each
units
M10 Second, Straight Flute 1.25mm Metric Fine - 76 mm HSS 9.95 mm Plain - - 6H
RS Stock No. 455-992
BrandRS PRO
PHP271.39
Each
units
M5 Spiral Point 0.8mm Metric - 58 mm HSS 5 mm Plain - - -
RS Stock No. 668-1087
BrandRS PRO
PHP1,191.11
1 Set
Set(s)
M8 Straight Flute 1.25mm Metric Left Hand 72 mm HSS 6.3 mm Plain - - -
RS Stock No. 455-946
BrandRS PRO
PHP469.16
Each
units
4 BA Spiral Point 0.68mm BA - 50 mm HSS 3.55 mm Plain - - -
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