HSCo green-ring machine tap for blind holes DIN 371/376
Machine screw tap HSCo green form C
MATAP-BLIHO-HSCO-DIN371-GREEN-M4
ZEBRA
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- Tool geometry precisely tailored to stainless steel with increased clearance angle
- Extra homogeneous cutting edge rounding for a high process reliability and longer service life compared to comparable machine taps
- Sufficient coolant and lubricant must be added when cutting threads.
- For the machine tap/material assignments, see the overview tables
Datasheets(X)
Thread type | Metric thread |
Material to be processed | Steel, Stainless steel |
Hole type | Blind hole ≤ 2.5xD |
Suitable for machine type | Milling/drill center, Pedestal drilling machine |
Quality | ZEBRA-Premium |
Thread type x nominal diameter | M4 |
Pitch | 0.7 mm |
Length | 63 mm |
Shank diameter | 4.5 mm |
Size of square | 3.4 mm |
DIN | 371 |
Cutting material | HSCo |
Surface | Plain |
Form | C |
Core hole diameter | 3.3 mm |
Twist angle | 40° (right) |
Shank style | Cylindrical with square drive |
Tolerance of screw taps | ISO 2 (6H) |
Suitable for tensile strength up to | 1000 N/mm² |
Service life (points system) | 2 of 4 points |
Trueness to gauge (points system) | 4 of 4 points |
Versatility (points system) | 2 of 4 points |
Cutting behaviour (points system) | 3 of 4 points |
Chip formation (points system) | 2 of 4 points |
Material of sub-group | Stainless steels, sulphurated, Stainless steels, austenitic, Stainless steels, martensitic |
Key |
vc = cutting speed [m/min] |
f = feed [mm/r] |
n = rotation speed [rpm] |
The suggested cutting values are reference values and must be adapted to the respective conditions. |
For M20 | ||||||
Material designation | Tensile strength | M20 | ||||
vc | n | f | ||||
from | to | from | to | |||
Steels | ||||||
General structural steels | < 850 N/mm² | 6 | 8 | 95 | 127 | 2,50 |
Unalloyed quenched and tempered steels | < 850 N/mm² | 6 | 8 | 95 | 127 | 2,50 |
Low-alloy quenched and tempered steels | < 850 N/mm² | 6 | 8 | 95 | 127 | 2,50 |
Unalloyed quenched and tempered steels | < 1,000 N/mm² | 4 | 6 | 64 | 95 | 2,50 |
Low-alloy quenched and tempered steels | < 1,000 N/mm² | 4 | 6 | 64 | 95 | 2,50 |
Alloyed quenched and tempered steels | < 1,200 N/mm² | 4 | 6 | 64 | 95 | 2,50 |
Nitriding steels | < 1,200 N/mm² | 4 | 6 | 64 | 95 | 2,50 |
Tool steels | < 1,200 N/mm² | 4 | 6 | 64 | 95 | 2,50 |
High-speed steels | < 1,200 N/mm² | 4 | 6 | 64 | 95 | 2,50 |
Stainless steels | ||||||
Stainless steels | < 850 N/mm² | 4 | 6 | 64 | 95 | 2,50 |
For M3-M5 | ||||||||||||
Material designation | Tensile strength | M3 | M4 | M5 | ||||||||
vc | n | f | n | f | n | f | ||||||
from | to | from | to | from | to | from | to | |||||
Steels | ||||||||||||
General structural steels | < 850 N/mm² | 6 | 8 | 637 | 849 | 0,50 | 477 | 637 | 0,70 | 382 | 509 | 0,80 |
Unalloyed quenched and tempered steels | < 850 N/mm² | 6 | 8 | 637 | 849 | 0,50 | 477 | 637 | 0,70 | 382 | 509 | 0,80 |
Low-alloy quenched and tempered steels | < 850 N/mm² | 6 | 8 | 637 | 849 | 0,50 | 477 | 637 | 0,70 | 382 | 509 | 0,80 |
Unalloyed quenched and tempered steels | < 1,000 N/mm² | 4 | 6 | 424 | 637 | 0,50 | 318 | 477 | 0,70 | 255 | 382 | 0,80 |
Low-alloy quenched and tempered steels | < 1,000 N/mm² | 4 | 6 | 424 | 637 | 0,50 | 318 | 477 | 0,70 | 255 | 382 | 0,80 |
Alloyed quenched and tempered steels | < 1,200 N/mm² | 4 | 6 | 424 | 637 | 0,50 | 318 | 477 | 0,70 | 255 | 382 | 0,80 |
Nitriding steels | < 1,200 N/mm² | 4 | 6 | 424 | 637 | 0,50 | 318 | 477 | 0,70 | 255 | 382 | 0,80 |
Tool steels | < 1,200 N/mm² | 4 | 6 | 424 | 637 | 0,50 | 318 | 477 | 0,70 | 255 | 382 | 0,80 |
High-speed steels | < 1,200 N/mm² | 4 | 6 | 424 | 637 | 0,50 | 318 | 477 | 0,70 | 255 | 382 | 0,80 |
Stainless steels | ||||||||||||
Stainless steels | < 850 N/mm² | 4 | 6 | 424 | 637 | 0,50 | 318 | 477 | 0,70 | 255 | 382 | 0,80 |
For M12-M16 | ||||||||||||
Material designation | Tensile strength | M12 | M14 | M16 | ||||||||
vc | n | f | n | f | n | f | ||||||
from | to | from | to | from | to | from | to | |||||
Steels | ||||||||||||
General structural steels | < 850 N/mm² | 6 | 8 | 159 | 212 | 1,75 | 136 | 182 | 2,00 | 119 | 159 | 2,00 |
Unalloyed quenched and tempered steels | < 850 N/mm² | 6 | 8 | 159 | 212 | 1,75 | 136 | 182 | 2,00 | 119 | 159 | 2,00 |
Low-alloy quenched and tempered steels | < 850 N/mm² | 6 | 8 | 159 | 212 | 1,75 | 136 | 182 | 2,00 | 119 | 159 | 2,00 |
Unalloyed quenched and tempered steels | < 1,000 N/mm² | 4 | 6 | 106 | 159 | 1,75 | 91 | 136 | 2,00 | 80 | 119 | 2,00 |
Low-alloy quenched and tempered steels | < 1,000 N/mm² | 4 | 6 | 106 | 159 | 1,75 | 91 | 136 | 2,00 | 80 | 119 | 2,00 |
Alloyed quenched and tempered steels | < 1,200 N/mm² | 4 | 6 | 106 | 159 | 1,75 | 91 | 136 | 2,00 | 80 | 119 | 2,00 |
Nitriding steels | < 1,200 N/mm² | 4 | 6 | 106 | 159 | 1,75 | 91 | 136 | 2,00 | 80 | 119 | 2,00 |
Tool steels | < 1,200 N/mm² | 4 | 6 | 106 | 159 | 1,75 | 91 | 136 | 2,00 | 80 | 119 | 2,00 |
High-speed steels | < 1,200 N/mm² | 4 | 6 | 106 | 159 | 1,75 | 91 | 136 | 2,00 | 80 | 119 | 2,00 |
Stainless steels | ||||||||||||
Stainless steels | < 850 N/mm² | 4 | 6 | 106 | 159 | 1,75 | 91 | 136 | 2,00 | 80 | 119 | 2,00 |
For M6-M10 | ||||||||||||
Material designation | Tensile strength | M6 | M8 | M10 | ||||||||
vc | n | f | n | f | n | f | ||||||
from | to | from | to | from | to | from | to | |||||
Steels | ||||||||||||
General structural steels | < 850 N/mm² | 6 | 8 | 318 | 424 | 1,00 | 239 | 318 | 1,25 | 191 | 255 | 1,50 |
Unalloyed quenched and tempered steels | < 850 N/mm² | 6 | 8 | 318 | 424 | 1,00 | 239 | 318 | 1,25 | 191 | 255 | 1,50 |
Low-alloy quenched and tempered steels | < 850 N/mm² | 6 | 8 | 318 | 424 | 1,00 | 239 | 318 | 1,25 | 191 | 255 | 1,50 |
Unalloyed quenched and tempered steels | < 1,000 N/mm² | 4 | 6 | 212 | 318 | 1,00 | 159 | 239 | 1,25 | 127 | 191 | 1,50 |
Low-alloy quenched and tempered steels | < 1,000 N/mm² | 4 | 6 | 212 | 318 | 1,00 | 159 | 239 | 1,25 | 127 | 191 | 1,50 |
Alloyed quenched and tempered steels | < 1,200 N/mm² | 4 | 6 | 212 | 318 | 1,00 | 159 | 239 | 1,25 | 127 | 191 | 1,50 |
Nitriding steels | < 1,200 N/mm² | 4 | 6 | 212 | 318 | 1,00 | 159 | 239 | 1,25 | 127 | 191 | 1,50 |
Tool steels | < 1,200 N/mm² | 4 | 6 | 212 | 318 | 1,00 | 159 | 239 | 1,25 | 127 | 191 | 1,50 |
High-speed steels | < 1,200 N/mm² | 4 | 6 | 212 | 318 | 1,00 | 159 | 239 | 1,25 | 127 | 191 | 1,50 |
Stainless steels | ||||||||||||
Stainless steels | < 850 N/mm² | 4 | 6 | 212 | 318 | 1,00 | 159 | 239 | 1,25 | 127 | 191 | 1,50 |