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 Set Type Thread Size Type Pitch Thread Standard Thread Direction Number of Pieces Overall Length Shank Standard Hand/Machine Tap Material Shank Diameter Shank Type For Use With
RS Stock No. 188-3849
Mfr. Part No.222A.TJ25
Threading Tap Set - - - - - 25 - - - - - - -