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Machine tap M4X0.5 DIN 374 C HSSE Fra
0000007132
Thread size: M4x0,575 sizes of this tap
M3x0,35M3,5x0,35M4x0,5M5x0,5M6x0,75M8x0,75M8x1M10x0,5M10x0,75M10x1M10x1,25M11x1M12x1M12x1,25M12x1,5M14x1M14x1,25M14x1,5M15x1M15x1,5M16x0,75M16x1M16x1,5M16x1,75M17x0,75M17x1M18x1M18x1,25M18x1,5M18x2M19x1M20x1M20x1,25M20x1,5M20x2M22x1M22x1,5M22x2M23x1,25M24x1M24x1,5M24x2M25x1M25x1,5M25x2M27x1M27x1,5M27x2M28x1M28x1,5M28x2M30x1M30x1,5M30x2M32x1,5M32x2M33x1,5M33x2M34x1,5M35x1,5M36x1,5M36x2M36x3M38x1,5M39x1M39x1,5M40x1,5M42x2M48x1,5M48x2M48x3M50x1,5M52x1,5M52x3M56x3
€9.71 tax inc.
Net price: €7.89
Description
Material HSSE
Thread size M4x0.5
ChamferC (2–3) threads
Standard DIN 374
Technical data for the M4x0.5 HSSE INOX general-purpose machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M4x0.5 |
| Thread Pitch P | 0.5 mm |
| Overall Length l1 | 63 mm |
| Flute Length l2 | 12 mm |
| Shank Diameter d2 | 4.5 mm |
| Square Drive Size a | 3.4 mm |
| Tap Drill Diameter | 3.5 mm |
| Chamfer | C (2÷3) P |
| Thread tolerance | 6H |
Where chips remain in a straight-flute tap
The flute holds the chips until the tap is reversed out
The straight flute runs parallel to the tap axis. There is no helix to carry chips upward. The chamfer cutting edges are not ground at an angle, so they do not push chips downward. Short chips break into fragments and remain in the flute, next to the cutting edges that produced them. They leave the hole only when the tap is backed out. The M4x0.5 tap has a reduced shank to DIN 374: diameter 4.5 mm, square size 3.4 mm.
1
Straight flute – chips remain in the flute, next to the cutting edges that produced them.
2
Chamfer C: 2–3 incomplete threads on the tapered lead.
3
The tap rotates clockwise to cut a right-hand thread.
4
Individual fragments exit at the top, onto the workpiece surface.
5
A few fragments fall below the tip and exit through the bottom of the hole.
6
Feed 0.5 mm/rev, equal to the pitch of the M4x0.5 thread.
M4x0.5 INOX machine tap – HSSE tool for stainless steel
This model from the Fra HSSE series is designed to cut M4x0.5 metric fine threads in stainless and structural steels and features a pitch of 0.5 mm. The M4x0.5 INOX machine tap features an increased number of threads per unit length, providing greater connection load capacity and better sealing at small diameters. With 5% added cobalt, the tool retains a hardness of 66 HRC even at temperatures up to 650°C in the cutting zone. Form C with straight flutes provides versatile use. The M4x0.5 machine tap for through and blind holes is intended for manufacturers of precision components.
Key benefits of the M4x0.5 general-purpose tap
- Fine pitch of 0.5 mm provides the maximum number of threads per unit length at small diameters, increasing sealing performance and connection load capacity
- Material versatility covering 304 and 316 austenitic stainless steels, structural steels up to 800 MPa, GGG40 ductile cast iron, and aluminum alloys
- Compatibility with ER11 holders and collets for precise clamping on machining centers with axial compensation and automatic tool changing
- Precision to tolerance class 6H for demanding fit tolerances in series production of high-precision mechanical and electronic components
- Compliance with DIN 374 for fine threads ensures standardized shank dimensions and interchangeability with tools from European manufacturers
- M4x0.5 HSSE machine tap with form C allows tapping of through holes and blind holes without changing the tool or parameters
The M4x0.5 general-purpose machine tap from Fra is used in precision electronics and optical component manufacturing. European manufacturing quality guarantees reliability. The tap drill diameter for the M4x0.5 thread is 3.5 mm.
Cutting data for the M4x0.5 HSSE INOX general-purpose machine tap
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 398-1592 | 199-796 |
| MStainless steel / INOX | 5-10 | 398-796 | 199-398 |
| KCast iron | 5-15 | 398-1194 | 199-597 |
| NAluminum | 10-25 | 796-1989 | 398-994 |
Thread preparation M4x0.5
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 3.5 mm
3 Tapping
M4x0.5
✓ Done!
Tolerance 6H
Standard: DIN 374 | 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
The M4x0.5 HSSE tap is suitable for austenitic stainless steels 304 and 316, structural steels up to 800 MPa, ductile cast iron, and aluminum and brass alloys. It is not recommended for hardened steels above 45 HRC.
The nominal tap drill diameter for the M4x0.5 thread is 3.5 mm. The hole tolerance range should be 3.4–3.6 mm. A hole at the lower tolerance limit produces a fuller thread profile, while one at the upper limit reduces tapping torque.
The M4x0.5 tap works with ER11 holders and tapping chucks with axial compensation. Synchronized heads with automatic tool change capability are recommended for CNC machines.
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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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