SNSIV
Socket Head Cap Screws – Super Invar
Dimension Drawing
Dimensions/Specifications/CAD
| Part Number | M | L | D1 | L1 | B | Tension Rupture Load (N)* | Qty per Pack | Mass (g) |
|---|---|---|---|---|---|---|---|---|
| SNSIV-M3-6 | 3 | 6 | 5.5 | 3 | 2.5 | 2360 | 1 | 0.74 |
| SNSIV-M3-8 | 3 | 8 | 5.5 | 3 | 2.5 | 2360 | 1 | 0.82 |
| SNSIV-M3-10 | 3 | 10 | 5.5 | 3 | 2.5 | 2360 | 1 | 0.9 |
| SNSIV-M3-12 | 3 | 12 | 5.5 | 3 | 2.5 | 2360 | 1 | 1 |
| SNSIV-M3-16 | 3 | 16 | 5.5 | 3 | 2.5 | 2360 | 1 | 1.2 |
| SNSIV-M3-20 | 3 | 20 | 5.5 | 3 | 2.5 | 2360 | 1 | 1.4 |
| SNSIV-M4-8 | 4 | 8 | 7 | 4 | 3 | 4120 | 1 | 1.7 |
| SNSIV-M4-10 | 4 | 10 | 7 | 4 | 3 | 4120 | 1 | 1.9 |
| SNSIV-M4-12 | 4 | 12 | 7 | 4 | 3 | 4120 | 1 | 2 |
| SNSIV-M4-16 | 4 | 16 | 7 | 4 | 3 | 4120 | 1 | 2.4 |
| SNSIV-M4-20 | 4 | 20 | 7 | 4 | 3 | 4120 | 1 | 2.8 |
| SNSIV-M4-25 | 4 | 25 | 7 | 4 | 3 | 4120 | 1 | 3.3 |
| SNSIV-M5-10 | 5 | 10 | 8.5 | 5 | 4 | 6670 | 1 | 2.8 |
| SNSIV-M5-12 | 5 | 12 | 8.5 | 5 | 4 | 6670 | 1 | 3.1 |
| SNSIV-M5-16 | 5 | 16 | 8.5 | 5 | 4 | 6670 | 1 | 3.6 |
| SNSIV-M5-20 | 5 | 20 | 8.5 | 5 | 4 | 6670 | 1 | 4.2 |
| SNSIV-M5-25 | 5 | 25 | 8.5 | 5 | 4 | 6670 | 1 | 5 |
| SNSIV-M6-12 | 6 | 12 | 10 | 6 | 5 | 9440 | 1 | 5.3 |
| SNSIV-M6-16 | 6 | 16 | 10 | 6 | 5 | 9440 | 1 | 6 |
| SNSIV-M6-20 | 6 | 20 | 10 | 6 | 5 | 9440 | 1 | 6.8 |
| SNSIV-M6-25 | 6 | 25 | 10 | 6 | 5 | 9440 | 1 | 7.8 |
| SNSIV-M6-30 | 6 | 30 | 10 | 6 | 5 | 9440 | 1 | 8.7 |
| SNSIV-M8-16 | 8 | 16 | 13 | 8 | 6 | 17200 | 1 | 13 |
| SNSIV-M8-20 | 8 | 20 | 13 | 8 | 6 | 17200 | 1 | 14 |
| SNSIV-M8-25 | 8 | 25 | 13 | 8 | 6 | 17200 | 1 | 16 |
| SNSIV-M8-30 | 8 | 30 | 13 | 8 | 6 | 17200 | 1 | 18 |
| SNSIV-M8-35 | 8 | 35 | 13 | 8 | 6 | 17200 | 1 | 20 |
* Values in chart are for reference only. They are not guaranteed values.
Material/Finish
| SNSIV | |
|---|---|
| Main Body | Super Invar |
Application
Precision and measurement instruments
Characteristics
- Super Invar is a special alloy with an extremely low linear expansion coefficient, and its dimensions change very little due to temperature.
- For measurement and precision instruments which do not allow changes in dimensions due to thermal expansion.
- For Prevention from loosening and damage due to differences in thermal expansion.
- Linear Expansion Coefficient:
0.69×10-6（K-1）（30 deg C – 100 deg C）
Physical property
| Super Invar | SUS304 | |
|---|---|---|
| Specific Gravity | 8.15 | 7.93 |
| Longitudinal Elastic Modulus（GPa） | 132 | 193 |
| Electric Resistance（μΩ・ｍ） | 0.77 | 0.7 |
| Thermal Conductivity（W/（m・K）） | 10.47 | 17 |
Values in chart are for reference only. They are not guaranteed values.
Mechanical property
| Super Invar | SUS304 | |
|---|---|---|
| Tensile Strength（N/mm2） | 470 | 520 or Higher |
| 0.2％ Proof Stress（N/mm2） | 333 | 205 or Higher |
| Elongation（％） | 43 | 40 or Higher |
| Hardness（HV） | 143 | 200 or Less |
Values in chart are for reference only. They are not guaranteed values.
