Insert screws
Tightening Torque
| Screw | Thread | Torx-Size | Torque in Nm | Torque in in-lbs |
|---|---|---|---|---|
| T16.035 T16.045 |
M1.6 | T5 | 0.30 | 2.7 |
| T18.Z30A | ~M1.8 | T5 | 0.45 | 4 |
| T20.037 T20.041 |
M2.0 | T6 | 0.60 | 5.3 |
| T22.041 T22.045 T22.050 |
M2.2 | T7 | 1.00 | 8.9 |
| T25.045 T25.055 T25.070 |
M2.5 | T7 | 1.30 | 11.5 |
| T30.090 | M3.0 | T8 | 2.20 | 19.5 |
| T35.084 | M3.5 | T15 | 3.40 | 30.1 |
| T40.082 | M4.0 | T15 | 5.10 | 45.2 |
Recommended Tightening Torque
The table contains recommended torque values in Newton-meters (Nm) and inch-pounds (in-lbs) for indexable insert screws. These values include the screw designation, thread type, Torx size, and the recommended torque.
Please note that these are general recommendations. Properly tightening the screws ensures a secure connection between the indexable inserts and cutting tools. Inadequate fastening can result in loosening or failure of the screws, leading to quality issues or even accidents. Adhering to the recommended torque values ensures that the indexable inserts are securely and stably attached to the cutting tool. This ensures optimal machining performance as the cutting edges are correctly positioned and maintain the required stability.
Correctly assembling the indexable insert screws can help extend their lifespan. By following the recommended torque values, the likelihood of damage to the screws or indexable inserts is reduced, leading to a longer service life. Using the recommended torque values ensures that the tools function properly and achieve the desired results.