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Machine Tap M22X2 DIN 374/35 C HSSE
0000008168
€51.79 tax inc.
Net price: €42.11
Description
Material HSSE
Thread size M22x2
ChamferC (2–3) threads
Standard DIN 374
Technical data for the M22x2 blind hole tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M22x2 |
| Thread Pitch P | 2 mm |
| Helix Angle | 35° |
| Overall Length l1 | 140 mm |
| Flute Length l2 | 27 mm |
| Length l3 | 48 mm |
| Shank Diameter d2 | 18 mm |
| Square Drive Size a | 14.5 mm |
| Tap Drill Diameter | 20 mm |
| Chamfer | C (2÷3) P |
| Thread tolerance | 6H |
How a spiral flute tap evacuates chips from a blind hole
The 35° flute works like a screw conveyor
The flutes of this tap follow a right-hand helix at an angle of 35° to the axis. The tap rotates clockwise and advances into the hole. Chips cut by the chamfer enter the flute, and the helix carries them upward like the auger in a meat grinder. The bottom of the hole stays clear, and the cutting edges do not encounter packed chips. The M22x2 tap has a reduced shank to DIN 374: diameter 18 mm, square drive 14.5 mm.
1
The 35° spiral flute carries chips upward from the chamfer.
2
The stepped chip exits the hole and breaks into short pieces.
3
The tap rotates clockwise to cut a right-hand thread.
4
Chamfer C: 2–3 incomplete threads on the tapered lead.
5
Clearance below the tap tip – min. 2 thread pitches above the bottom.
6
Feed 2 mm/rev, equal to the pitch of the M22x2 thread.
M22x2 spiral flute machine tap – metric fine thread for blind holes
The M22x2 machine tap cuts a metric fine thread with a pitch of 2 mm in tolerance class 6H. A pitch smaller than the standard 2.5 mm increases the thread contact area and the tensile strength of the connection while maintaining the same nominal diameter. The tool complies with DIN 374 for metric fine threads – the Ø 18 mm shank is reduced relative to the thread diameter and passes through the finished thread. The 35° spiral flute directs chips upward, enabling use in blind holes. HSSE steel with 5% added cobalt has a hardness of 63–65 HRC and retains its cutting properties up to approximately 600 °C.
Technical specifications of the M22x2 machine tap
- Pitch 2 mm instead of the standard 2.5 mm provides a shallower profile and lower tapping torque at the same thread diameter
- Material range includes structural steels up to 900 MPa, alloy and stainless steels, and aluminum and copper alloys
- Chamfer C (2–3 threads) allows the thread to extend close to the bottom of a blind hole
- Flute length 27 mm with an overall length of 140 mm, allows a thread depth of up to 1.2 times the diameter
- Tolerance class 6H ensures interchangeability with screws with an M22x2 thread in tolerance class 6g
- Ø 18 mm shank with square drive works with tapping holders with axial compensation
The M22x2 tap is used in hydraulic power systems, valve bodies, and components carrying dynamic loads. The tap hole is drilled with a Ø 20 mm drill bit. Tapping stainless steel requires ample coolant and a reduced cutting speed.
Cutting data for the M22x2 blind hole machine tap
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 72-289 | 144-578 |
| MStainless steel | 5-10 | 72-145 | 144-290 |
| KCast iron | 5-15 | 72-217 | 144-434 |
| NAluminum | 10-25 | 145-362 | 290-724 |
Thread preparation M22x2 in a blind hole
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 20 mm
3 Tapping
M22x2
✓ Done!
Tolerance 6H
Standard: DIN 374 | Chamfer: C (spiral flute) | Application: blind holes
Tolerance 6H — metric thread tolerance classes
| Class | Accuracy | Application | Status |
|---|---|---|---|
| 4H / 4g | High | Precision connections, hydraulics | — |
| 6H / 6g | Standard | Machine building, general-purpose | SELECTED |
| 7H / 8g | Low | Large clearance, easy assembly | — |
6H = internal thread (nut, hole) | 6g = external thread (screw)
Frequently asked questions
The M22x2 HSSE metric fine machine tap is suitable for structural steels up to 900 MPa, stainless steels, aluminum, and brass. The intermediate pitch of 2 mm is used in steel structures requiring connections with increased strength.
For the M22x2 metric fine thread in tolerance class 6H, the tap drill diameter should be 20 mm. The permissible hole tolerance range is 20.0-20.2 mm. A smaller hole increases cutting torque and the risk of tool breakage.
Yes, cooling with an oil emulsion at a minimum concentration of 8% or with tapping oil is recommended and extends tool life by a factor of 2-3. Intensive cooling is required when machining stainless steels, while aluminum can be tapped with minimal lubrication.
Product accessories
Machine tap M22X2 DIN 374 C HSSE Fra
Reference: 0000008224 In stock < 10 items
€36.84
€45.32 brutto
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| Courier GLS | Przelew24 / Prepayment | 14,76 zł gross | Delivery time 1 working day |
| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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