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. 508-9840
Mfr. Part No.00055
BrandEVENTUS
$7.18
Each
units
M3.5 Plug 0.6mm Metric Coarse - 45 mm HSS 4 mm Plain - - 6H
RS Stock No. 508-9856
Mfr. Part No.10003
BrandEVENTUS
$4.45
Each
units
M3 Plug 0.5mm Metric - 40 mm HSS - Plain - - 6H
RS Stock No. 508-9395
Mfr. Part No.20003
BrandEVENTUS
$6.64
Each
units
M5 Short Machine 0.8mm Metric - 50 mm HSS - Plain - - 6H
RS Stock No. 508-9834
Mfr. Part No.10007
BrandEVENTUS
$4.58
Each
units
M4 Plug 0.7mm Metric - 45 mm HSS - Plain - - 6H
RS Stock No. 455-970
BrandRS PRO
$10.04
Each
units
#4-40 Spiral Point - UNC - 48 mm HSS 3.15 mm Plain - - -
RS Stock No. 508-9632
Mfr. Part No.05974
BrandEXACT
$83.11
Each
units
M25 - 1.5mm Metric Fine - 51 mm HSS - - - - 6H
RS Stock No. 373-796
Mfr. Part No.E650 M4
BrandDormer
$43.71
Each
units
M4 Combination 0.7mm Metric Right Hand 65 mm HSS 4 mm Plain - - 6H
RS Stock No. 602-2113
Mfr. Part No.20182
BrandEVENTUS
$14.07
Each
units
G1/4-19 Short Machine - BSP - 70 mm HSS - Plain - - -
RS Stock No. 390-2482
Mfr. Part No.45046
BrandRecoil
$28.46
Each
units
M4 Bottoming 0.7mm Metric Coarse - - - - Plain - - -
RS Stock No. 668-1078
BrandRS PRO
$32.36
1 Set
Set(s)
M6 Straight Flute 1mm Metric Left Hand 66 mm HSS 6.3 mm Plain - - -
RS Stock No. 389-1966
Mfr. Part No.45036
BrandRecoil
$29.81
Each
units
M3 Bottoming 0.5mm Metric Coarse - - - - Plain - - -
RS Stock No. 455-974
BrandRS PRO
$9.72
Each
units
#6-32 Spiral Point - UNC - 50 mm HSS 3.55 mm Plain - - -
RS Stock No. 152-120
BrandRS PRO
$9.21
Each
units
M2 Plug, Straight Flute 0.4mm Metric Coarse - - HSS - Plain - - -
RS Stock No. 522-7632
BrandRS PRO
$94.20
Each
units
M18 Second, Straight Flute 1mm Metric Fine - 97 mm HSS 13.8 mm Plain - - 6H
RS Stock No. 389-1988
Mfr. Part No.45066
BrandRecoil
$34.27
Each
units
M6 Bottoming 1mm Metric Coarse - - - - Plain - - -
RS Stock No. 508-9913
Mfr. Part No.20002
BrandEVENTUS
$6.73
Each
units
M4 Short Machine 0.7mm Metric - 45 mm HSS - Plain - - 6H
RS Stock No. 668-1093
BrandRS PRO
$9.77
1 Set
Set(s)
1/4-28 Straight Flute - UNF - 56 mm HSS 6 mm Plain - - -
RS Stock No. 269-5341
Mfr. Part No.E100 3N8
BrandDormer
$60.65
Each
units
M3 Straight Flute 0.5mm Metric Right Hand 40 mm HSS 3.5 mm Plain - - 6H
RS Stock No. 152-384
BrandRS PRO
$8.52
Each
units
M5 Plug, Straight Flute 0.8mm Metric Coarse - - HSS - Plain - - -
RS Stock No. 669-9381
BrandRS PRO
$10.49
Each
units
M4 Hexagon Drive Tap 0.7mm Metric - 35 mm HSS - Hex - - -
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