- 98% satisfied customers
- 72h delivery
- 30 dni na zwrot
Machine tap M8x1 DIN 374/35 C HSSE Fra
0000006956
€14.57 tax inc.
Net price: €11.84
Description
Material HSSE
Thread size M8x1
ChamferC (2–3) threads
Standard DIN 374
Technical data for the M8x1 blind hole tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M8x1 |
| Thread Pitch P | 1 mm |
| Helix Angle | 35° |
| Overall Length l1 | 90 mm |
| Flute Length l2 | 20 mm |
| Length l3 | 35 mm |
| Shank Diameter d2 | 6 mm |
| Square Drive Size a | 4.9 mm |
| Tap Drill Diameter | 7 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 M8x1 tap has a reduced shank to DIN 374: diameter 6 mm, square drive 4.9 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 1 mm/rev, equal to the pitch of the M8x1 thread.
M8x1 spiral-flute machine tap – metric fine thread for precision joints
Fra's series of metric fine taps for precision engineering includes the M8x1 spiral flute machine tap with a pitch of 1 mm. The 6H tolerance in accordance with DIN 374 guarantees the dimensional repeatability required in series production of mechanical components. Made from HSSE steel with 5% added cobalt, it provides a hardness of 65-67 HRC and heat resistance up to 650°C in the cutting zone. The 35° spiral flute directs chips backward when tapping blind holes in precision housings and bodies.
Why choose the M8x1 spiral flute machine tap
- Compliance with DIN 374 for metric fine threads ensures standardized dimensions and full interchangeability with tools from European manufacturers
- Designed for precision engineering includes electronic enclosures, optical components, measuring equipment, and medical instruments
- Tolerance class 6H precision guarantees full thread interchangeability and dimensional repeatability in high-volume production of precision components
- Durability of HSSE steel with 5% cobalt allows operation at temperatures up to 650°C without loss of the cutting edge's mechanical properties
- Form C chamfer for blind holes allows tapping close to the bottom of the hole with a minimal incomplete thread length of 2-3 pitches
- Compatibility with ER16 and ER25 tool holders and tapping chucks with axial compensation for CNC machining centers
The M8x1 spiral flute tap is used in the production of electronic and precision mechanical components requiring leak-tight threaded connections. The fine pitch of 1 mm provides a larger contact area than the standard M8x1.25 thread. The tap drill diameter for the M8x1 thread is 7 mm according to metric fine thread tables.
Cutting data for the M8x1 blind hole machine tap
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 199-796 | 199-796 |
| MStainless steel | 5-10 | 199-398 | 199-398 |
| KCast iron | 5-15 | 199-597 | 199-597 |
| NAluminum | 10-25 | 398-995 | 398-995 |
Thread preparation M8x1 in a blind hole
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 7 mm
3 Tapping
M8x1
✓ 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 M8x1 HSSE metric fine machine tap is suitable for structural steels up to 900 MPa, stainless steels, aluminum, and brass. The fine pitch of 1 mm provides improved connection leak tightness in hydraulic applications.
For the M8x1 metric fine thread in tolerance class 6H, the tap drill diameter should be 7 mm. The permissible hole tolerance range is 7.0-7.15 mm. A smaller hole increases cutting torque and the risk of tool breakage.
Yes, cooling with an oil emulsion of at least 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 minimum quantity lubrication (MQL).
Product accessories
M8X1 HSSE Inox DIN 22 568 Fanar tooling
Reference: 061200 In stock > 10 items
€17.63
€21.69 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.