Dormer Threading Tap, M20 Thread, 1.5mm Pitch, Metric Fine Standard, Machine Tap

A range of machine fine metric straight flute HSS taps from Dormer. The tap bit tolerance class is 6H and features a short 2-thread input and a 7 degree cutting angle and straight grooves. These tap bits are recommended for use in both through or blind holes with a depth of up to 2 times diameter.

Threading taps are used to create threads for bolts in materials like metals and plastics. Threading taps work like a drill but due to the unique shape of a tap, when they are screwed into a piece of material, screw threads are created. Taps can be used in machines like drill presses or with hand tools such as a tap wrench.

Material HSS (High Speed Steel) - for high durability and resistance to corrosion
MF Machine Tap Straight Flute
Metric fine thread type
Right handed thread direction – designed to tighten when a head or nut is rotated clockwise
Shiny bright surface
Available in various sizes
Plug tap 1-2 pitch chamfer length

Taps and dies are used to create screw threads (commonly known as threading). Taps make nuts and a die makes a bolt. Forming threads using a tap is known as tapping, but using a die calls the process threading. Threading taps are used in applications such as:
Engineering
Manufacturing

FAQs

What is HSS?
An acronym for High-speed steel, HSS is generally the go-to type of steel needed for tap and drill bits due to their excellent heat resistance at high speeds. As a standard drill can spin upwards of around 500 - 700rpm, the friction can cause a substantial build-up of heat. Something which would not be wanted when working with wood and plastic.

What are the different types of threading taps?
The four most popular ones are:

Straight Flute Taps: most commonly used type of tap and suitable for blind or though hole thread production in most materials, mainly steel and cast iron. These collect chips in the straight flutes of the tool.

Spiral Point Taps: suitable for threading through holes. They push chips through holes ahead of the tool.

Spiral Flute Taps: intended primarily for threading blind holes. They pull chips back from the tip of the tool and up and out of the hole.

Forming Taps: produce a thread by pressing the material rather than cutting and no chips are created.

These Dormer taps are Straight Flute Taps.

What is chamfer?
Chamfer is a term that refers to the size of the threads on a tap that taper, allowing for the cutting thread to be gradually enlarged.

What are the different material types available?
These include:
HSS: High Speed Steel
HSS-E: High Speed Cobalt
HSS HM: High Speed Steel/Carbide
HSS-E PM: HSS-E Powder Metallurgy Steel

This threading tap by Dormer is a high-speed steel machine tap designed for industrial use. It features a straight flute design and a metric fine thread with a pitch of 1.5mm. It is a reliable tool for creating precise threads in various materials.

• Machine tap suitable for use in a wide range of industrial applications
• Constructed from high-speed steel for durability and longevity
• Straight flute design ensures accurate threading
• Metric fine thread with a 1.5mm pitch for precision work
• Shank diameter of 14mm for stability and control
• Right-hand thread direction for ease of use

• Ideal for creating threads in metal components
• Suitable for use in the automotive industry for engine parts
• Can be used for precision engineering projects
• Can be used in manufacturing processes for consistent results
• Great for maintenance and repair work in mechanical industries

Yes, the Dormer threading tap is suitable for use in automated machinery due to its high-speed steel construction and precise thread design.

The threading tap is versatile and can be used on a variety of materials, including metal, aluminium, and steel.

Yes, the slim shank diameter of 14mm allows for threading in hard-to-reach areas and tight spaces with ease.

Rolled Flute Taps

Bright finish fluteless taps; for use on copper, aluminium, magnesium, brass, zinc etc.
Flash chrome finish fluteless taps; for use on steel up to 850N/mm² tensile strength, free matching and austenitic stainless steel
Made to ISO529 standard for tapping blind and through holes in a wide range of ductile materials
Smooth non-cutting action produces greater thread formed strength, higher life expectancy and increased tapping speeds especially where excessive tension occurs