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Machine tap M24x2 DIN 374 B HSSE Fra
0000006438
Thread size: M24x261 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
€45.32 tax inc.
Net price: €36.84
Description
Material HSSE
Thread size M24x2
ChamferB (3.5–5.5) threads
Standard DIN 374
Technical data for the M24x2 machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M24x2 |
| Thread Pitch P | 2 mm |
| Overall Length l1 | 140 mm |
| Flute Length l2 | 20 mm |
| Shank Diameter d2 | 18 mm |
| Square Drive Size a | 14.5 mm |
| Tap Drill Diameter | 22 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 M24x2 tap has a reduced shank according to DIN 374: diameter 18 mm, square size 14.5 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 M24x2 thread.
M24x2 metric fine thread machine tap – HSSE Fra for structural applications
The manufacturer Fra offers an M24x2 metric fine thread machine tap made of HSSE high-speed steel with 5% cobalt for use in machine building and steel structures. The 2 mm pitch is intermediate between the M24x3 coarse thread and typical metric fine threads, offering better sealing performance and higher strength while maintaining fast assembly. The 6H tolerance in accordance with DIN 374 guarantees the dimensional repeatability required in series production of machine components.
Why choose the Fra M24x2 metric fine thread machine tap
- Manufacturer Fra as a specialist in special-purpose and metric fine thread taps, guarantees high manufacturing quality and accurate thread geometry
- Fine thread with a 2 mm pitch offers 50% higher tensile strength than the M24x3 coarse thread while maintaining quick assembly
- 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 22 mm for the M24x2 metric fine thread ensures optimal thread engagement
The Fra M24x2 machine tap is used in machine building, steel structures, and the automotive industry where greater 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 | 66-265 | 132-530 |
| MStainless steel | 5-10 | 66-133 | 132-266 |
| KCast iron | 5-15 | 66-199 | 132-398 |
| NAluminum | 10-25 | 133-332 | 266-664 |
Thread preparation M24x2 in a through hole
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 22 mm
3 Tapping
M24x2
✓ 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 M24x2 fine thread provides approximately 50% higher tensile strength, better sealing, and greater resistance to self-loosening with a slightly longer assembly time.
The recommended tap drill diameter for the M24x2 metric fine thread is 22 mm. Precise hole machining ensures full thread engagement.
The M24x2 thread is used in machine building, steel structures, and automotive applications where greater joint strength than a coarse thread provides is required.
Product accessories
Machine Threader M24x2 DIN 374 C HSSE
Reference: 0000008238 In stock < 10 items
€34.21
€42.08 brutto
Machine Tap M24x2 DIN 374/35 C HSSE
Reference: 0000007282 In stock < 10 items
€39.47
€48.55 brutto
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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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