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Description
Material HSSE
Thread size M8x1
ChamferC (2–3) threads
Standard ISO 529
Technical data for the M8x1 HSSE INOX general-purpose machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M8x1 |
| Thread Pitch P | 1 mm |
| Overall Length l1 | 69 mm |
| Flute Length l2 | 19 mm |
| Shank Diameter d2 | 8 mm |
| Square Drive Size a | 6.3 mm |
| Tap Drill Diameter | 7 mm |
| Chamfer | C (2÷3) P |
| Thread tolerance | 6H |
M8x1 INOX machine tap – universal HSSE tool to ISO 529
The Fra HSSE series, designed for manufacturing engineers and CNC operators working with metric fine threads, includes the M8x1 INOX machine tap in accordance with ISO 529. The 6H tolerance in accordance with ISO 529 guarantees the dimensional repeatability required when manufacturing internationally standardized mechanical components for export. The thread pitch of 1 mm provides more threads per unit length. HSSE steel with 5% cobalt ensures a hardness of 66 HRC and long cutting edge life in stainless and difficult-to-machine steels.
Key features of the M8x1 tap for through and blind holes
- Compliance with ISO 529 ensures international dimensional standardization and full compatibility with clamping systems used worldwide
- Designed for stainless steels of austenitic grades 304 and 316, structural steels up to 800 MPa, and aluminum alloys and engineering brass
- Precision of the 6H tolerance required when manufacturing mechanical and hydraulic components for export to meet international accuracy requirements
- Durability thanks to HSSE steel with 5% cobalt allows 400-600 threads to be produced in structural steel with proper lubrication using tapping oil
- Compatibility with ER20 holders and tapping heads for CNC machining centers with synchronous tapping and axial compensation
- M8x1 general-purpose machine tap with form C directs chips correctly in both through holes and blind holes without the risk of jamming
The Fra M8x1 HSSE machine tap is designed for export production requiring international standardization. European manufacturing quality guarantees reliability. The tap drill diameter is 7 mm.
Cutting data for the M8x1 HSSE INOX general-purpose 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 / INOX | 5-10 | 199-398 | 199-398 |
| KCast iron | 5-15 | 199-597 | 199-597 |
| NAluminum | 10-25 | 398-995 | 398-995 |
Thread preparation M8x1
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 7 mm
3 Tapping
M8x1
✓ Done!
Tolerance 6H
Standard: ISO 529 | Chamfer: C (straight) | Application: general-purpose (through and 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
With proper cooling and lubrication, the M8x1 ISO 529 HSSE tap produces 400-600 threads in structural steel or 250-350 threads in stainless steel. Dry operation reduces tool life by 40-50%.
Yes, the M8x1 ISO 529 HSSE tap with 5% cobalt is designed for austenitic stainless steels 304 and 316. The cobalt addition increases heat resistance up to 650°C in the cutting zone.
ISO 529 is an international standard specifying tap dimensions and tolerances, ensuring compatibility across global markets. DIN standards are German equivalents, often identical or very similar to ISO standards.
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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 |
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