Taps - Plug - Metric

Taps are tools used by engineers for creating a female thread inside a hole. The tap is inserted into a special wrench and turned whilst cutting oil is used to lubricate the tap.

When forming a brand new thread in a blind hole, it is usually a three-stage process.

Metric is the most common thread type in production today. Usually specified as M then a number x another number. This signifies the thread diameter and the length of the fastener.

For example, M4 x 30 means that the major thread diameter (the external distance across the outside of the thread) is 4mm and the length is 30mm. Length is usually measured from the underside of the fastener head.

Using taps

  • Firstly a taper tap is used. This tap has a pronounced taper to the cutting edges, ensuring that the first cut is less aggressive.
  • After the taper tap comes a second tap. This also has a tapered edge, but not as pronounced as the taper tap. This slight taper helps align the tap when it is first introduced to the hole.
  • The third and final stage is carried out with a bottoming tap, often referred to as plug tap. Bottoming taps have hardly any taper and a continuous cutting edge.

When cutting shallow female threads, it may be possible to skip the third stage and just use the taper or second taps.

If tapping into a soft material it is possible to cut the thread with only a second tap.

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9 Items

Code Product Name Info Pack Size Price Qty
0BA - Plug Tap Presto 60500 T3MC03 M3 - Plug Tap Presto 60000
1
£7.33 £8.80
0BA - Plug Tap Presto 60500 T3MC03
M3 - Plug Tap Presto 60000
1
£7.33 £8.80
0BA - Plug Tap Presto 60500 T3MC035 M3.5 - Plug Tap Presto 60000
1
£8.38 £10.06
0BA - Plug Tap Presto 60500 T3MC035
M3.5 - Plug Tap Presto 60000
1
£8.38 £10.06
0BA - Plug Tap Presto 60500 T3MC04 M4 - Plug Tap Presto 60000
1
£6.67 £8.00
0BA - Plug Tap Presto 60500 T3MC04
M4 - Plug Tap Presto 60000
1
£6.67 £8.00
0BA - Plug Tap Presto 60500 T3MC05 M5 - Plug Tap Presto 60000
1
£7.04 £8.45
0BA - Plug Tap Presto 60500 T3MC05
M5 - Plug Tap Presto 60000
1
£7.04 £8.45
0BA - Plug Tap Presto 60500 T3MC06 M6 - Plug Tap Presto 60000
1
£7.19 £8.63
0BA - Plug Tap Presto 60500 T3MC06
M6 - Plug Tap Presto 60000
1
£7.19 £8.63
0BA - Plug Tap Presto 60500 T3MC08 M8 - Plug Tap Presto 60000
1
£7.98 £9.58
0BA - Plug Tap Presto 60500 T3MC08
M8 - Plug Tap Presto 60000
1
£7.98 £9.58
M10 - Plug Tap Presto 60000 T3MC10 M10 - Plug Tap Presto 60000
1
£10.24 £12.29
M10 - Plug Tap Presto 60000 T3MC10
M10 - Plug Tap Presto 60000
1
£10.24 £12.29
0BA - Plug Tap Presto 60500 T3MC12 M12 - Plug Tap Presto 60000
1
£14.49 £17.39
0BA - Plug Tap Presto 60500 T3MC12
M12 - Plug Tap Presto 60000
1
£14.49 £17.39
0BA - Plug Tap Presto 60500 T3MC14 M14 - Plug Tap Presto 60000
1
£17.55 £21.06
0BA - Plug Tap Presto 60500 T3MC14
M14 - Plug Tap Presto 60000
1
£17.55 £21.06
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9 Items