MAYKESTAG HSS-Co5 Machine Tap M20 x 2 Straight Fluted DIN 376 Code 4803

Maykestag HSS-Co5 Machine Tap M20 x 2 Straight Fluted

Professional M20 x 2 metric machine tap manufactured from HSS-Co5, featuring straight flutes, a Form B chamfer and ISO 2 (6H) thread tolerance. Designed for accurate and dependable machine tapping of metric ISO through threads across a versatile range of engineering materials.

The Maykestag Code 4803 M20 machine tap is engineered for producing precise M20 x 2 metric ISO internal threads in through-hole applications. Its straight-fluted cutting geometry provides a strong, proven design for general machine tapping, while the Form B chamfer of 3.5–5 pitches spreads the cutting load progressively across several teeth for smoother engagement and controlled thread production.

Manufactured from HSS-Co5 cobalt-alloyed high-speed steel, this tap combines the toughness required to withstand tapping torque with improved heat and wear resistance at the cutting edges. The M20 version is manufactured to DIN 376 dimensional requirements and produces an internal metric thread to the widely used ISO 2 (6H) tolerance class.

Product highlights

• M20 x 2 metric thread: Produces an M20 metric ISO internal thread with a 2mm pitch.
• HSS-Co5 construction: Cobalt-alloyed high-speed steel provides an excellent combination of toughness, heat resistance and cutting-edge durability.
• Straight-fluted geometry: Strong, proven cutting design for dependable professional machine tapping.
• Form B chamfer: A 3.5–5 pitch lead provides gradual cutting engagement and is especially suited to through-hole tapping.
• ISO 2 (6H) tolerance: Produces a standard general-purpose metric internal thread tolerance used extensively in engineering and manufacturing.
• DIN 376: Manufactured to the dimensional standard applicable to this larger machine-tap size.
• Through-hole application: Intended for holes where the tap can pass beyond the far side of the workpiece.
• 17.5mm tap drill: Maykestag specifies a 17.5mm pre-drilled hole diameter for this M20 x 2 tap.
• Green ring classification: Quickly identifies the tool as part of Maykestag&s versatile universal application range.

Designed for Reliable M20 Thread Production

This M20 version combines a 2mm thread pitch with a substantial 140mm overall length and 32mm threaded cutting length. The 16mm shank and 12mm square provide a strong drive connection for suitable machine-tapping equipment, while Maykestag specifies a 17.5mm tap-drill diameter for preparing the workpiece. Correct hole size, tool alignment, cutting speed and suitable lubrication are important for producing clean threads while reducing unnecessary torque and wear on the tap.