M3–M20 Molybdenum Screws
Custom High Temperature Mo Screws
M3–M20 Molybdenum Screws are high-temperature refractory metal fasteners designed for demanding industrial applications where conventional steel screws may not provide sufficient thermal stability or vacuum performance.
We manufacture and supply custom molybdenum screws from M3 to M20, with different thread specifications, lengths, head styles and machining requirements.
Our molybdenum screws are suitable for vacuum furnaces, high-temperature furnaces, semiconductor equipment, heat treatment systems, sapphire growth equipment and other specialized applications.
Custom screws can be manufactured according to customer drawings or technical specifications.
M3–M20 Molybdenum Screw Specifications
ItemSpecificationProductMolybdenum ScrewSize RangeM3–M20MaterialMolybdenumMolybdenum PurityTypically ≥99.95%ThreadMetric / CustomThread SizeM3, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20Thread PitchStandard / CustomScrew LengthCustomHead TypeHex Socket, Slotted, Hex, Countersunk, CustomSurfaceMachined / GroundManufacturingPrecision MachiningApplicationHigh Temperature / VacuumCustomizationAvailable
Note: The actual material grade, purity, dimensions, tolerances and surface finish can be customized according to your application.
M3 to M20 Molybdenum Screws
We can manufacture molybdenum screws in various metric sizes.
SizeTypical ApplicationM3Small high-temperature components and laboratory equipmentM4Furnace fixtures and small assembliesM5High-temperature fixturesM6Vacuum furnace componentsM8Furnace structures and refractory metal assembliesM10Heavy-duty high-temperature fixturesM12Industrial furnace assembliesM14Custom high-temperature equipmentM16Large furnace fixturesM18Heavy-duty refractory metal assembliesM20Large high-temperature structural components
Thread pitch, screw length and head configuration can be customized.
High Temperature Molybdenum Screws
Molybdenum is a refractory metal with excellent high-temperature performance.
Molybdenum screws are particularly useful where fasteners need to operate in demanding thermal environments.
Typical applications include:
Vacuum furnaces
High-temperature furnaces
Hydrogen atmosphere furnaces
Vacuum heat treatment equipment
Semiconductor equipment
Sapphire crystal growth equipment
Powder metallurgy equipment
High-temperature fixtures
Thermal processing equipment
Laboratory and research equipment
Custom Molybdenum Screws
We provide custom molybdenum screws from M3 to M20 according to customer requirements.
Available customization includes:
Screw diameter
Overall length
Thread length
Thread pitch
Head diameter
Head height
Head type
Hex socket
Slotted head
Hex head
Countersunk head
Special holes
Custom grooves
Special end configurations
Tight dimensional tolerances
For non-standard screws, please provide a technical drawing so we can evaluate the manufacturing process and quotation.
Molybdenum Screws for Vacuum Furnaces
Molybdenum screws are widely used in specialized furnace assemblies because molybdenum offers excellent performance in high-temperature environments.
They can be used for fastening:
Molybdenum heat shields
Molybdenum sheets
Molybdenum plates
Furnace fixtures
Heating assemblies
Support structures
High-temperature components
For vacuum applications, material purity and surface cleanliness can be specified according to the operating environment.
High Purity Molybdenum Material
Our molybdenum screws can be manufactured from high-purity molybdenum.
Typical material:
Mo ≥99.95%
Other molybdenum grades can be evaluated according to the application.
Material certificates and inspection documentation can be supplied according to customer requirements.
Precision Machined Molybdenum Screws
Molybdenum requires specialized machining techniques because of its material characteristics.
Depending on the screw design, available machining processes may include:
CNC turning
Thread machining
Precision grinding
Head machining
Hex socket machining
Slot machining
Drilling
End-face machining
Custom CNC machining
Dimensional inspection
The manufacturing process is selected according to the screw size, thread, head design, tolerance and quantity.
Molybdenum Screw Head Types
Different head configurations are available according to application requirements.
Hex Socket Head
Suitable for applications requiring compact installation and controlled tightening.
Slotted Head
Suitable for simple installation requirements and customized furnace fixtures.
Hex Head
Suitable for applications requiring conventional wrench installation.
Countersunk Head
Suitable where the screw head needs to sit flush with the mounting surface.
Custom Head
Special head geometries can be manufactured according to customer drawings.
Why Choose Our M3–M20 Molybdenum Screws?
Wide Size Range
Molybdenum screws are available from M3 to M20, depending on the design and production requirements.
High Purity Material
High-purity molybdenum such as ≥99.95% Mo is available.
Custom Manufacturing
Thread dimensions, screw lengths and head configurations can be customized.
Precision Machining
We provide machining and grinding for specialized molybdenum fasteners.
Small Batch Production
Prototype and small-volume orders can be evaluated according to the product design.
Drawing-Based Production
Send us your technical drawing and we can check feasibility before quotation.
Molybdenum Screw Manufacturing Process
Raw Material → CNC Machining → Thread Machining → Head Machining → Grinding → Cleaning → Dimensional Inspection → Final Inspection → Packaging
For customized molybdenum screws, the production process is adjusted according to the required geometry and tolerances.
Applications
Vacuum Furnace
M3–M20 molybdenum screws can be used for furnace fixtures, shields, heating assemblies and other refractory metal components.
Semiconductor Equipment
High-purity molybdenum fasteners can be used in selected high-temperature semiconductor processing equipment.
Sapphire Growth
Molybdenum components and fasteners can be used in high-temperature sapphire crystal growth systems.
Heat Treatment Equipment
Molybdenum screws are suitable for specialized high-temperature heat treatment equipment.
Powder Metallurgy
Custom refractory metal fasteners can be used in selected powder metallurgy and thermal processing systems.
Technical Information Required for Quotation
To quote your molybdenum screws accurately, please provide:
1. Screw Size: M3–M20
2. Overall Length: ___ mm
3. Thread Length: ___ mm
4. Thread Pitch: ___ mm
5. Head Type: ___
6. Head Diameter: ___ mm
7. Head Height: ___ mm
8. Material: Pure Molybdenum / Other
9. Purity: ___
10. Quantity: ___ pcs
11. Tolerance: ___
12. Surface Finish: ___
13. Application: ___
For customized screws, a 2D technical drawing or 3D CAD file is preferred.
FAQ
What sizes of molybdenum screws can you manufacture?
We can manufacture molybdenum screws in sizes ranging from M3 to M20, depending on the screw design, thread and manufacturing requirements.
Are M3 molybdenum screws available?
Yes. M3 molybdenum screws can be evaluated for custom production. The exact head design, thread length and quantity should be confirmed before production.
Can you manufacture M20 molybdenum screws?
Yes. M20 molybdenum screws can be manufactured according to the required dimensions and application.
What is the purity of your molybdenum screws?
High-purity molybdenum with a typical purity of ≥99.95% Mo can be supplied.
Can you make custom molybdenum screws?
Yes. We can manufacture custom screws according to 2D drawings, 3D CAD files or detailed specifications.
Can you make different head types?
Yes. Hex socket, slotted, hex, countersunk and other customized head configurations can be evaluated.
Can I order a small quantity?
Yes. Small-batch and prototype orders can be evaluated depending on the screw design and manufacturing process.
Can you provide material certification?
Yes. Material certificates and inspection documents can be provided according to customer requirements.
Request a Quote
Looking for M3–M20 molybdenum screws for a high-temperature or vacuum application?
Send us your:
Screw Size + Length + Thread + Head Type + Quantity + Material Requirement
For customized molybdenum screws, please attach your technical drawing.
Contact us for manufacturing feasibility assessment and quotation.
