- 98% satisfied customers
- 72h delivery
- 30 dni na zwrot
Machine Threader M20x2 DIN 374 B HSSE
0000005741
Thread size: M20x261 sizes of this tap
M5x0,5M10x1M10x1,25M11x0,75M12x1M12x1,25M12x1,5M14x1M14x1,25M14x1,5M15x1M15x1,25M15x1,5M16x1M16x1,5M17x1M18x1M18x1,5M18x2M20x0,75M20x1M20x1,25M20x1,5M20x2M22x1,5M22x2M24x1M24x1,5M24x2M25x1M25x1,5M25x2M26x1,5M27x1,5M28x1,5M30x1,5M30x2M30x3M32x1M32x1,5M32x2M33x1,5M33x2M35x1,5M36x1,5M36x2M36x3M38x1,5M39x1,5M39x2M40x1,5M42x1,5M42x2M42x3M48x1,5M50x2M52x2M56x3M60x3M64x3M64x4
€46.93 tax inc.
Net price: €38.16
Description
Material HSSE
Thread size M20x2
ChamferB (3.5–5.5) threads
Standard DIN 374
Technical data for the M20x2 machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M20x2 |
| Thread Pitch P | 2 mm |
| Overall Length l1 | 140 mm |
| Flute Length l2 | 32 mm |
| Shank Diameter d2 | 16 mm |
| Square Drive Size a | 12 mm |
| Tap Drill Diameter | 18 mm |
| Chamfer | B (3.5÷5.5) P |
| Thread tolerance | 6H |
How the type B through-hole chamfer pushes chips down the hole
Chips exit at the bottom instead of returning through the thread
The form B chamfer for through holes has a chip breaker at the tip of the tap – an angled cut in the cutting edges. The chip breaker directs the chip down the hole, ahead of the tap tip. The chip curls into a coil, breaks into short pieces and exits the hole on the other side of the workpiece. The threads already cut remain clean because the chip does not pass through them on its way up. The M20x2 tap has a reduced shank according to DIN 374: diameter 16 mm, square size 12 mm.
1
Straight flute – chips do not enter it; the flute carries lubricant to the cutting edges.
2
The chip breaker at the tip of the tap directs chips down the hole.
3
The tap rotates clockwise to cut a right-hand thread.
4
B chamfer: 3.5–5.5 incomplete threads on the entry taper.
5
The chips break into segments: individual pieces at the top of the hole, with progressively more farther down. They fall out below the workpiece.
6
Feed 2 mm/rev, equal to the pitch of the M20x2 thread.
M20x2 fine thread machine tap – HSSE for machine construction
The manufacturer offers the M20x2 fine thread machine tap made of HSSE high-speed steel with 5% cobalt for applications in machine building and steel structures. The 2 mm pitch is intermediate between the M20x2.5 coarse thread and typical fine threads, offering better sealing and higher strength while maintaining quick assembly. Tolerance class 6H according to DIN 374 guarantees the dimensional repeatability required in series production of machine components. The tool is intended for manufacturing plants and maintenance departments.
Advantages and applications of the M20x2 fine thread machine tap
- Fine thread with a 2 mm pitch offers 25% higher tensile strength than the M20x2.5 coarse thread while maintaining quick assembly
- Improved connection sealing thanks to a greater number of threads compared with a coarse thread, which is important in structures exposed to vibration
- HSSE steel with 5% cobalt guarantees a hardness of 65-67 HRC and heat resistance up to 650°C, extending cutting edge life
- Tolerance 6H according to DIN 374 ensures precise thread production and full interchangeability with standard-grade fasteners
- Material versatility covering structural steels up to 800 MPa, alloy steels, gray and ductile cast iron, and aluminum
- Recommended tap drill diameter 18 mm for the M20x2 metric fine thread ensures optimal thread engagement
The M20x2 fine thread machine tap is used in machine building, steel structures, and the automotive industry where higher strength than a coarse thread provides is required. Form B with straight flutes directs chips forward when tapping through holes. Cooling with an oil emulsion at a concentration of 6-8% is recommended.
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 80-318 | 160-636 |
| MStainless steel | 5-10 | 80-159 | 160-318 |
| KCast iron | 5-15 | 80-239 | 160-478 |
| NAluminum | 10-25 | 159-398 | 318-796 |
Thread preparation M20x2 in a through hole
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 18.0 mm
3 Tapping
M20x2
✓ Done!
Tolerance 6H
Standard: DIN 374 | Chamfer: B (straight) | Application: through 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 M20x2 fine thread provides approximately 25% higher tensile strength, better sealing, and greater resistance to self-loosening with a slightly longer assembly time than a coarse thread.
The recommended tap drill diameter for the M20x2 metric fine thread is 18 mm. Precise hole machining ensures full thread engagement.
The M20x2 thread is used in machine building, steel structures, and automotive applications where greater joint strength than a coarse thread provides is required while maintaining fast assembly.
Product accessories
Machine Threader M20x2 DIN 374 C HSSE
Reference: 0000008281 In stock < 10 items
€32.89
€40.46 brutto
Reviews
No customer reviews for the moment.
Shipping
All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE
| 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 |
This website uses its own and third-party cookies to improve our services and show you advertising related to your preferences by analyzing your browsing habits. To give your consent to its use, press the Accept button.
Cookie preferences
Functional cookiesTechnical
Functional cookies are strictly necessary to provide the services of the shop, as well as for its proper functioning, so it is not possible to refuse their use. They allow the user to browse through our website and use the different options or services that exist on it.
Advertising Cookies
These are cookies that collect information about the advertisements shown to users of the website. They can be anonymous, if they only collect information about the advertising spaces shown without identifying the user, or personalised, if they collect personal information about the user of the shop by a third party, for the personalisation of these advertising spaces.
Analytics cookies
Collect information about the user's browsing experience in the shop, usually anonymously, although sometimes they also allow the user to be uniquely and unequivocally identified in order to obtain reports on the user's interests in the products or services offered by the shop.