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Machine screw tap HSCo green ring blind hole DIN 371/376
The low-priced machine tap for processing alloyed and high-alloyed steels (stainless steels), as well as rust-resistant and acid-resistant steels. Also suitable for processing conventional steel materials up to a strength of 850 N/mm².
- 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
- Cutting material: HSCo
- Surface: Plain
- Form: C
- 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 sub-group: Stainless steels, sulphurated, Stainless steels, austenitic, Stainless steels, martensitic
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VVVV = 4 digits for prefix number (please note that the first digit is currently always 0)
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Example article number structures:
Example 1: Screw with dimensions of 4x10 mm:
00574 10 (2 spaces between the 4 and the 10)
Example 2: Screw with dimensions of 10x20 mm:
005710 20 (1 space between the 10 and the 20)
Example 3: Flat washer with an internal diameter of 6 mm:
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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
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