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Machine tap M18x2 DIN 374 B HSSE Fra
0000004221
Thread size: M18x261 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
€32.69 tax inc.
Net price: €26.58
Description
Material HSSE
Thread size M18x2
ChamferB (3.5–5.5) threads
Standard DIN 374
Technical data for the M18x2 machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M18x2 |
| Thread Pitch P | 2 mm |
| Overall Length l1 | 125 mm |
| Flute Length l2 | 26 mm |
| Shank Diameter d2 | 14 mm |
| Square Drive Size a | 11 mm |
| Tap Drill Diameter | 16 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 M18x2 tap has a reduced shank according to DIN 374: diameter 14 mm, square size 11 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 M18x2 thread.
M18x2 metric fine thread machine tap – HSSE Fra for industrial applications
The manufacturer Fra offers an M18x2 metric fine thread machine tap made of HSSE high-speed steel with 5% cobalt for applications in the machinery and construction industries. The 2 mm pitch is intermediate between the M18x2.5 coarse thread and the M18x1.5 and M18x1 metric fine threads, offering a compromise between assembly speed and threaded joint strength. As a specialist in metric fine thread and special taps, Fra guarantees the highest manufacturing quality and precise tool geometry. The tool is intended for professional toolrooms and manufacturers of mechanical components requiring nonstandard pitches.
Key advantages of the M18x2 Fra machine tap
- Manufacturer Fra as a specialist in special and metric fine thread taps, guarantees high manufacturing quality, precise thread geometry and consistent tool parameters
- Fine thread with a 2 mm pitch offers a compromise between the assembly speed of the M18x2.5 coarse thread and the strength of M18x1.5 and M18x1 threads, with good leak tightness
- HSSE steel with 5% cobalt guarantees a hardness of 65-67 HRC and heat resistance up to 650°C, extending cutting edge life under intensive use
- Tolerance 6H according to DIN 374 ensures precise thread production and full interchangeability with fasteners used in the machinery and construction industries
- Material versatility covering structural steels up to 800 MPa, alloy steels, austenitic stainless steels 304/316, and gray and ductile cast iron
- The recommended tap drill diameter of 16 mm for the M18x2 metric fine thread ensures optimal thread engagement with minimal tool load
The M18x2 Fra machine tap is used in the machinery and construction industries and in special applications where standard M18x2.5 or M18x1.5 pitches do not meet the project's design requirements. The M18x2 thread offers an intermediate solution for specific requirements. Cooling with an oil emulsion at a concentration of 6-8% is recommended to maintain optimal tool life.
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 88-354 | 176-708 |
| MStainless steel | 5-10 | 88-177 | 176-354 |
| KCast iron | 5-15 | 88-265 | 176-530 |
| NAluminum | 10-25 | 177-442 | 354-884 |
Thread preparation M18x2 in a through hole
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 16 mm
3 Tapping
M18x2
✓ 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
Fra is a specialist in special and metric fine thread taps, offering tools with high manufacturing quality and precise geometry. Fra taps are particularly recommended for nonstandard threads.
The recommended tap drill diameter for the M18x2 metric fine thread is 16 mm. Precise hole machining ensures full thread engagement.
The M18x2 thread is used in special applications where standard M18x2.5 or M18x1.5 pitches do not meet requirements. It offers an intermediate solution between speed and strength.
Product accessories
Machine tap M18x2 DIN 374 C HSSE Fra
Reference: 0000007144 In stock < 10 items
€25.00
€30.75 brutto
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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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