Molybdenum screws and fasteners for high strength and stability at extreme temperatures. High melting point (up to 2620 °C), good conductivity, low thermal expansion and low deformation — suited to oxygen-free, high-temperature applications such as vacuum furnaces and glass production. Standard sizes M5 to M12, with larger and custom sizes to drawing.
| Thread size | Available lengths |
|---|---|
| M5 | 1000 / 2000 / 3000 mm |
| M8 | 1000 / 2000 / 3000 mm |
| M10 | 1000 / 2000 / 3000 mm |
| M12 | 1000 / 2000 / 3000 mm |
| Grade / Purity | Mo ≥ 99.95% |
| Thread size | M5 – M12 (custom available) |
| Length | 1000 / 2000 / 3000 mm (custom) |
| Surface | Black / polished |
| Service note | Use in vacuum / inert atmosphere (oxidizes above 600 °C in air) |
| Quantity | As required |
| Packing | Moisture-proof paper + wooden / carton case |
| Atomic number | 42 |
| CAS number | 7439-98-7 |
| Atomic mass | 95.94 g/mol |
| Melting point | 2620 °C |
| Boiling point | 4639 °C |
| Density (20 °C) | 10.22 g/cm³ |
| Crystal structure | Body-centered cubic |
| Thermal expansion (20 °C) | 5.2 × 10⁻⁶ m/(m·K) |
| Thermal conductivity (20 °C) | 142 W/(m·K) |
| Specific heat (20 °C) | 0.25 J/(g·K) |
| Electrical conductivity (20 °C) | 17.9 × 10⁶ S/m |
| Resistivity (20 °C) | 0.056 (Ω·mm²)/m |
Mo powder mixed to grade.
Cold isostatic pressing.
Medium-frequency sintering furnace.
Machined and threaded to size.
Fasteners for high-temperature furnace hot zones.
Fixings for solar-cell and flat-panel coating targets.
Glass-melting electrodes and semiconductor substrate fixtures.
Fasteners for Mo / W alloys, brazing jigs and boring bars.
Send your thread size, length and grade — or a drawing. Quotes within one business day.