Goliath 20 x 2.5mm MC Taper Machine Nut HSS Tap - L48EH3
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Goliath is an Australian precision cutting tool brand supplying HSS taps, threading dies, tap and die sets, thread gauges, and key steel to engineering, manufacturing, maintenance, and toolmaking operations across Australia. This page covers the Goliath MC Taper Machine Nut HSS Tap, available in 13 diameter options: 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 14mm and 5 more.
Goliath metric coarse tap and die sets cover the full standard metric thread range for cutting M-series internal and external threads in engineering and fabrication.
Where this product is used
Goliath metric tap and die set products are used across engineering workshops, production machining, and industrial maintenance programs.
- Cutting metric coarse internal and external threads for standard M-series fastener manufacture and repair.
- Engineering workshop threading for metric hardware, structural fasteners, and general machinery.
- Maintenance and repair programs on equipment using metric standard fasteners.
Key specifications
| Specification | Detail |
|---|---|
| Material Grade | HSS |
Selecting the right option
Metric coarse sets are available in a range of size spans — select the set that covers your required size range. HSS grade suits hand and machine threading on mild steel, aluminium, brass, and plastics. For production tapping, consider Goliath cobalt spiral flute machine taps for individual sizes.
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Goliath MC Taper Machine Nut HSS Tap: 20mm
SKU: A0193734 | Model: L48EH3
This is the diameter 20mm option of the Goliath MC Taper Machine Nut HSS Tap. Key details for this option: thread form type Metric Coarse, thread length 83mm, drill diameter 17.5mm, length overall 229mm.
Goliath MC Taper Machine Nut HSS Tap
HSS Bright Finish Metric Coarse Machine Nut Taper Tap.
Machine Nut Taps are used where a long shank is needed and are available in Taper, Intermediate, and Bottoming leads.
To ensure easy and precise use the Machine Nut Tap Taper lead has a unique, very long entering chamfer.
This makes aligning the cutting end with the workpiece simple.
Ideal for tapping nuts, small quantities made from tough steel such as stainless steel as well as mild steels, or for rethreading rusty or worn threads.
Alternatively, the Intermediate and Bottoming leads are ideally suited to long-reach threading applications where the thread needs to be tapped or cleaned is beyond the reach of a standard tap.
We recommend the Intermediate lead Machine Nut Tap for long-reach through-hole applications and the Bottoming lead for long-reach blind-hole applications.
The Metric Coarse angle of thread is 60 degrees.
The crest is flat and the thread has clearance at the root, allowing external and internal threads to engage well.
A larger root radius and lower thread height enable easy screw thread processing and increase thread screw strength.
The major diameter of the external thread and pitch is specified by a simple numerical value (most commonly measured in millimetres).