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. 668-1100
BrandRS PRO
R 213.88
1 Set
Set(s)
1/4-20 Straight Flute - UNC - 56 mm HSS 6 mm Plain - - -
RS stock no. 522-7676
BrandRS PRO
R 1,680.31
Each
units
M30 Second, Straight Flute 1.5mm Metric Fine - 130 mm HSS 19.9 mm Plain - - 6H
RS stock no. 668-1093
BrandRS PRO
R 212.11
1 Set
Set(s)
1/4-28 Straight Flute - UNF - 56 mm HSS 6 mm Plain - - -
RS stock no. 668-1084
BrandRS PRO
R 590.96
1 Set
Set(s)
M12 Straight Flute 1.75mm Metric Left Hand 89 mm HSS 9 mm Plain - - -
RS stock no. 508-9727
Mfr. Part No.20241
BrandEVENTUS
R 241.82
Each
units
PG7 Short Machine - PG - - HSS - Plain - - -
RS stock no. 299-9609
Mfr. Part No.E500-M1,40/0,30
BrandDormer
R 813.72
Each
units
M1.4 Straight Flute 0.3mm Metric Right Hand 40 mm HSS 2.5 mm Plain - - 6H
RS stock no. 508-9913
Mfr. Part No.20002
BrandEVENTUS
R 59.26
Each
units
M4 Short Machine 0.7mm Metric - 45 mm HSS - Plain - - 6H
RS stock no. 427-957
BrandRS PRO
R 410.37
Each
units
PG7-20 Straight Flute - PG - 70 mm HSS 9 mm Plain - - -
RS stock no. 508-9632
Mfr. Part No.05974
BrandEXACT
R 663.66
Each
units
M25 Straight Flute 1.5mm Metric Fine - 51 mm HSS - - - - 6H
RS stock no. 602-2113
Mfr. Part No.20182
BrandEVENTUS
R 126.84
Each
units
G1/4-19 Short Machine - BSP - 70 mm HSS - Plain - - -
RS stock no. 300-0104
Mfr. Part No.E513-M6/0,50
BrandDormer
R 324.95
Each
units
M6 Straight Flute 0.5mm Metric Fine Right Hand 66 mm HSS 6.3 mm Plain - - 6H
RS stock no. 300-0003
Mfr. Part No.E501-M12
BrandDormer
R 739.77
Each
units
M12 Straight Flute 1.75mm Metric Left Hand 89 mm HSS 9 mm Plain - - 6H
RS stock no. 299-9615
Mfr. Part No.E500-M1,60/0,35
BrandDormer
R 541.47
Each
units
M1.6 Straight Flute 0.35mm Metric Right Hand 41 mm HSS 2.5 mm Plain - - 6H
RS stock no. 668-1103
BrandRS PRO
R 310.07
1 Set
Set(s)
3/8-16 Straight Flute - UNC - 70 mm HSS 7 mm Plain - - -
RS stock no. 455-908
BrandRS PRO
R 146.27
Each
units
M2.5 Spiral Point 0.45mm Metric - 44.5 mm HSS 2.8 mm Plain - - -
RS stock no. 508-9749
Mfr. Part No.05973
BrandEXACT
R 474.45
Each
units
M20 Straight Flute 1.5mm Metric Fine - 51 mm HSS - - - - 6H
RS stock no. 602-2135
Mfr. Part No.20184
BrandEVENTUS
R 270.38
Each
units
G1/2-14 Short Machine - BSP - 80 mm HSS - Plain - - -
RS stock no. 152-261
BrandRS PRO
R 127.45
Each
units
M2 Straight Flute, Taper 0.4mm Metric Coarse - - HSS - Plain - - -
RS stock no. 299-8549
Mfr. Part No.E101-M4,00
BrandDormer
R 924.77
Each
units
M4 Straight Flute 0.7mm Metric Left Hand 45 mm HSS 4.5 mm Plain - - 6H
RS stock no. 299-9750
Mfr. Part No.E500-M4/0,75
BrandDormer
R 150.05
Each
units
M4 Straight Flute 0.75mm Metric Right Hand 53 mm HSS 4 mm Plain - - 6H