MAYKESTAG HSS-Co5 Machine Tap M16 x 2 Straight Fluted DIN 376 Code 4803

Maykestag HSS-Co5 Machine Tap M16 x 2 Straight Fluted

Professional M16 x 2 metric machine tap manufactured from HSS-Co5, with straight flutes, Form B chamfer and ISO 2 (6H) thread tolerance. Designed for dependable machine tapping of metric ISO threads in through holes across a useful range of steels, stainless steels, cast iron, non-ferrous metals and plastics.

The Maykestag Code 4803 M16 machine tap is a robust, precision-manufactured threading tool for producing M16 x 2 metric ISO internal threads. Its straight-fluted geometry provides a strong and uncomplicated cutting design, while the Form B chamfer of 3.5–5 pitches provides gradual cutting engagement for controlled thread generation in through-hole applications.

Manufactured from HSS-Co5 cobalt-alloyed high-speed steel, this tap combines toughness with improved heat and wear resistance for professional machining. The M16 size is manufactured to DIN 376 dimensional requirements, while the finished internal thread is produced to the widely used ISO 2 (6H) tolerance class.

Product highlights

• M16 x 2 metric thread: Produces a standard M16 coarse-pitch metric ISO internal thread with a 2mm pitch.
• HSS-Co5 construction: Cobalt-alloyed high-speed steel provides excellent toughness together with enhanced heat and wear resistance.
• Straight-fluted geometry: Strong, proven cutting geometry for dependable general-purpose machine tapping.
• Form B chamfer: 3.5–5 pitch chamfer provides gradual cutting engagement and is particularly suited to through-hole tapping.
• ISO 2 (6H) tolerance: Produces a standard general-purpose metric internal thread tolerance suitable for a broad range of engineering applications.
• DIN 376: Manufactured to the dimensional standard applicable to this larger machine-tap size.
• Through-hole design: Intended for applications where the tap can continue through the workpiece rather than terminating at the bottom of a blind hole.
• 14mm tapping drill: Maykestag specifies a 14mm pre-drilled hole for this M16 x 2 tap.
• Broad material capability: Catalogue-rated for steels, selected stainless steels, cast iron, copper and brass, aluminium and plastics.

Made for Reliable M16 Threading

For this M16 version, Maykestag specifies a 2mm pitch, 110mm overall length, 28mm threaded cutting length and 12mm shank diameter. A 9mm square drive provides positive engagement with suitable machine-tapping holders, while the recommended 14mm tap-drill diameter prepares the workpiece for the correct thread geometry. Using the correct cutting speed, lubricant and tapping conditions for the workpiece material will help improve thread quality and maximise tap life.