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Machine Tapping M16x1.5 DIN 374 B HSSE
0000005684
Thread size: M16x1,561 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
€23.95 tax inc.
Net price: €19.47
Description
Material HSSE
Thread size M16x1.5
ChamferB (3.5–5.5) threads
Standard DIN 374
Technical data for the M16x1.5 machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M16x1.5 |
| Thread Pitch P | 1.5 mm |
| Overall Length l1 | 100 mm |
| Flute Length l2 | 20 mm |
| Shank Diameter d2 | 12 mm |
| Square Drive Size a | 9 mm |
| Tap Drill Diameter | 14.5 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 M16x1.5 tap has a reduced shank according to DIN 374: diameter 12 mm, square size 9 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 1.5 mm/rev, equal to the pitch of the M16x1.5 thread.
M16x1.5 fine thread machine tap – HSSE for industrial hydraulics
The HSSE tap series designed for professional toolrooms includes the M16x1.5 fine thread machine tap in a cobalt steel version for industrial hydraulic applications. Tolerance class 6H according to DIN 374 guarantees the dimensional repeatability needed to produce hydraulic components with the common diameter of 16 mm and a fine thread pitch. The tool, made of high-speed steel (HSS) with 5% cobalt, achieves a hardness of 65-67 HRC and heat resistance up to 650°C. The 1.5 mm pitch is standard in industrial hydraulics, providing excellent sealing of threaded connections under pressure.
Advantages and applications of the M16x1.5 fine thread machine tap
- Fine thread with a 1.5 mm pitch is standard in industrial hydraulics, providing good connection sealing and higher strength than the M16x2 coarse thread
- Standard in industrial hydraulics — the M16x1.5 thread is widely used in hydraulic connections, valve blocks, and high-pressure industrial fittings
- 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
- 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 14.5 mm for the M16x1.5 metric fine thread ensures optimal thread engagement with minimal tool load
The M16x1.5 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 | 99-398 | 148-597 |
| MStainless steel | 5-10 | 99-199 | 148-298 |
| KCast iron | 5-15 | 99-298 | 148-447 |
| NAluminum | 10-25 | 199-497 | 298-746 |
Thread preparation M16x1.5 in a through hole
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 14.5 mm
3 Tapping
M16x1.5
✓ 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 M16x1.5 thread is standard in industrial hydraulics due to its good sealing, higher strength than a coarse thread, and the widespread availability of hydraulic fittings in this size.
The recommended tap drill diameter for the M16x1.5 metric fine thread is 14.5 mm. Precise hole machining ensures full thread engagement.
The M16x1.5 fine thread provides approximately 35% higher tensile strength, better sealing, and greater resistance to self-loosening with a slightly longer assembly time.
Product accessories
HSSE 14.5 cobalt metal drill bit DIN 338
Reference: 13337 In stock > 10 items
€11.05
€13.59 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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