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Machine Tap M12x1 DIN 374 B HSSE
0000008273
Thread size: M12x161 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
€17.16 tax inc.
Net price: €13.95
Description
Material HSSE
Thread size M12x1
ChamferB (3.5–5.5) threads
Standard DIN 374
Technical data for the M12x1 machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M12x1 |
| Thread Pitch P | 1 mm |
| Overall Length l1 | 100 mm |
| Flute Length l2 | 20 mm |
| Shank Diameter d2 | 9 mm |
| Square Drive Size a | 7 mm |
| Tap Drill Diameter | 11 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 M12x1 tap has a reduced shank according to DIN 374: diameter 9 mm, square size 7 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 1 mm/rev, equal to the pitch of the M12x1 thread.
M12x1 fine thread machine tap – HSSE for industrial hydraulics
The M12x1 fine-thread machine tap from the HSSE series is designed for cutting internal threads with a reduced pitch of 1 mm in the popular M12 diameter used in industrial hydraulics. The M12x1 metric fine thread is a standard in industrial hydraulics and pneumatics, providing excellent sealing and high resistance to self-loosening under pressure pulsations. High-speed steel with 5% cobalt provides a hardness of 65-67 HRC and high heat resistance in the cutting zone up to 650°C. The tool is intended for professional toolrooms and hydraulic equipment manufacturers.
Technical specifications of the M12x1 metric fine thread machine tap
- Fine thread with a 1 mm pitch provides 75% higher tensile strength than the M12x1.75 coarse thread and excellent sealing of the threaded connection
- Standard in industrial hydraulics and pneumatics, where leak-tight threaded connections and resistance to pressure pulsations are required in high-pressure systems
- 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 hydraulic fittings used in industry
- Compatibility with ER20 holders and tapping chucks with axial compensation for CNC machining centers with synchronous tapping capability
- The recommended tap drill diameter of 11 mm for the M12x1 metric fine thread ensures optimal thread engagement with minimal tool load
The M12x1 machine tap is used in industrial hydraulics, pneumatics, valve blocks, and wherever leak-tight threaded connections are required in pressurized systems. 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 to maintain optimum tool life.
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 133-531 | 133-531 |
| MStainless steel | 5-10 | 133-265 | 133-265 |
| KCast iron | 5-15 | 133-398 | 133-398 |
| NAluminum | 10-25 | 265-663 | 265-663 |
Thread preparation M12x1 in a through hole
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 11 mm
3 Tapping
M12x1
✓ 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 M12x1 thread is a standard in hydraulics due to its excellent sealing, high tensile strength, and resistance to pressure pulsations, thanks to its larger load-bearing area compared with a coarse thread.
The recommended tap drill diameter for the M12x1 metric fine thread is 11 mm — larger than for the M12x1.75 coarse thread (10.2 mm) due to the finer pitch.
The M12x1 fine thread provides approximately 75% higher tensile strength, better sealing, and greater resistance to self-loosening, with a longer assembly time.
Product accessories
Counterbore 20X10.2 M12 DIN 373 HSS
Reference: 0000003391 In stock > 10 items
€22.89
€28.16 brutto
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Shipping
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| 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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