Corrosion Resistant Titanium Set Screws
Titanium set screws are headless, fully threaded fasteners, usually with hex socket or Torx drive. They are tightened into a threaded hole so the tip presses firmly against a shaft or surface.
By using point or line contact, plus friction and slight embedment, they lock parts securely. This design works best where space is tight or a flush surface is required.
Titanium Set Screws Specifications
- DIN 913 / ISO 4026, DIN 914 / ISO 4027, DIN 916 / ISO 4029, DIN 915 / ISO 4028
- DIN 34827 – TA6V (Ti-6Al-4V, Grade 5)
- ASME B18.3 / IFI standards
We can produce according to drawings, special thread pitches, and with full or partial threads.
RoHS / REACH compliance and EN 10204 3.1 material certificates are available, helping your project pass audits with confidence.
Select the Perfect Tip for Your Project
We not only supply standard hex socket set screws but also offer custom options to match your application needs.
Flat point set screws
Standard:ISO 4026 / DIN 913
Wall Thickness:As required for project
Features:adjustable, non-marring; ideal for hard shafts or surfaces that need protection; perfect for adjustable or mark-free applications
Cone point set screws
Standard:ISO 4027 / DIN 914
Wall Thickness:As required for project
Features:strongest anti-rotation; tip bites into surface for maximum holding power; suitable for semi-permanent fixing
Cup point set screws
Standard:ISO 4029 / DIN 916
Wall Thickness:As required for project
Features:most common style; strong grip and reusable; suitable for most shafts and general applications
Dog point set screws
Standard:ISO 4028 / DIN 915
Wall Thickness:As required for project
Features:locating tip engages mating hole for high repeatability; used where precise repositioning is required
We also provide knurled cup, oval, nylon tip, and ball point titanium set screws, as shown below. All types can be made from titanium, aluminum, stainless steel, or other alloys, available in both metric and inch sizes.
Titanium Set Screw Drive Options
Unlike standard screws, titanium set screws have no external head; the drive is recessed into the threaded body.
This compact design ensures a flush fit, making them ideal for securing gears, pulleys, and shafts in rotating assemblies.
The screw passes through the threaded hole and locks firmly against the mating surface, preventing relative movement.
- Socket (hex drive) – Most common, provides strong torque and easy installation.
- 6-lobe (Torx drive) – Higher torque transfer, reduces risk of cam-out, ideal for precision assembly.
- Slotted drive – Simple and economical, suitable for light-duty fastening.
- Square drive (Robertson) – Secure engagement, minimizes slippage, preferred in heavy-duty applications.
Titanium Set Screws Sizes and Dimensions
We supply a full range of titanium set screws (DIN / ISO metric and ASME inch sizes). Whether you need small trial quantities or bulk orders, we can provide fast delivery with full traceability and material certificates.
Metric sizes (DIN / ISO standards)
| Diameter | Length range (mm) | Common sizes | Standard reference |
|---|---|---|---|
| M1.6 – M2.5 | 3 – 10 | M2×4, M2.5×6 | DIN / ISO |
| M3 – M6 | 4 – 20 | M3×6, M4×8, M5×10, M6×8 | DIN / ISO |
| M8 – M12 | 8 – 30 | M8×10, M10×12 | DIN / ISO |
Inch sizes (ASME B18.3 standard)
| Diameter | Length range (inch) | Common sizes | Standard reference |
|---|---|---|---|
| #4-40 | 3/16 – 3/8 | #4-40×1/4" | ASME B18.3 |
| #6-32 | 1/4 – 1/2 | #6-32×3/8" | ASME B18.3 |
| 3/8-16 | 3/8 – 1/2 | 3/8-16×1/2" | ASME B18.3 |
- Thread engagement: use ≥ 1 × nominal diameter for secure holding.
- Hot-selling metric sizes: M3×6, M4×8, M5×10, M6×8.
- Hot-selling inch sizes: #4-40×1/4", #6-32×3/8".
- MOQ: No minimum order for stock sizes; custom orders available in 2–3 weeks.
How to order: Browse the size tables, send us your CAD drawing or BOM list, and receive a fast quotation with lead time and certificates.
Titanium Set Screw Material Options
Grade 2 titanium set screws Commercially pure titanium, excellent corrosion resistance, non-magnetic, and easy to machine.
Grade 5 titanium set screws (Ti-6Al-4V) Aerospace grade with high strength, superior fatigue resistance, and reliable performance under vibration or impact.
Grade 7 titanium set screws Enhanced corrosion resistance with added palladium, ideal for aggressive chloride or seawater environments.
Still not sure which grade suits your project? Contact our engineering team for expert advice and a fast quote.
Surface Finish & Color Options
- Polished finish – Smooth, bright surface for reduced friction during assembly and a clean appearance.
- Anodized colors – Titanium anodizing creates vibrant, durable colors without coatings or paint. Popular for applications requiring identification, decoration, or anti-galling.
- PVD coating – Advanced Physical Vapor Deposition process gives a harder, smoother surface with superior wear and corrosion resistance compared to traditional plating.
Choose the finish that fits your project – whether you need functional durability or customized appearance, we can deliver.
Colored Anodized
Black Anodized
Yellow Anodized
Applications of Titanium Set Screws
- Sports, cycling & outdoor equipment Titanium set screws are 45% lighter than steel, available in anodized colors, and widely used in bicycles, diving gear, and racing components for both aesthetics and reliability.
- Marine & offshore equipment Titanium set screws resist seawater corrosion up to 260 °C and deep-sea pressure (>1 mile depth). Ideal for pumps, valves, couplings, desalination units, and offshore oil & gas platforms.
- Chemical processing & chlor-alkali industry Titanium is immune to chloride stress corrosion and chlorine attack, making set screws reliable in bleach plants, paper & pulp mills, and chlorine-based process equipment.
- Precision automation & machinery Titanium set screws provide high clamping force without damaging shaft surfaces, ensuring stable alignment in robotics, CNC fixtures, and industrial automation lines.
- Medical & non-magnetic environments Non-magnetic Grade 2 titanium ensures clean, biocompatible, and interference-free fastening in MRI, surgical instruments, and medical devices.
Titanium Set Screws Mechanical Properties
Titanium Grade 2
| Temperature (°F) | Ultimate Tensile (ksi) | Yield Strength at 0.2% Offset (ksi) | Elongation % |
|---|---|---|---|
| Room Temp. | 70 | 50 | 28 |
| 212 | 56 | 37 | 31 |
| 392 | 41 | 28 | 37 |
| 572 | 33 | 18 | 43 |
| 752 | 27 | 13 | 38 |
| 842 | 26 | 11 | 34 |
Titanium Grade 5
| Temperature (°F) | Ultimate Tensile (ksi) | Yield Strength at 0.2% Offset (ksi) | Elongation % |
|---|---|---|---|
| Room Temp. | 138 | 128 | 14 |
| 300 | 121 | 105 | 16 |
| 500 | 110 | 93 | 17 |
| 700 | 100 | 82 | 18 |
Titanium Grade 7
| Temperature (°F) | Ultimate Tensile (ksi) | Yield Strength at 0.2% Offset (ksi) | Elongation % |
|---|---|---|---|
| Room Temp. | 50 | 40 | 20 |
| 200 | 57 | 40 | 28 |
| 400 | 41 | 24 | 41 |
| 600 | 32 | 15 | 38 |
Titanium Resistance to Chlorine – Grade 2
A stable oxide film forms naturally on titanium, giving excellent protection against uniform corrosion in seawater and chloride environments.
At higher temperatures (>80 °C) and in crevice conditions with chlorides, crevice corrosion may occur. Preventive steps include minimizing crevice design, applying thread sealant, and ensuring fluid flow.
For hidden set screw points in marine or chemical equipment, Grade 2 is recommended, while high-temperature, high-chloride conditions may require palladium-alloyed titanium such as Grade 7.
| Media | Temperature (°F) | Corrosion Rate mpy (mm/y) |
|---|---|---|
| Wet Chlorine | 50–190 | Nil – 0.02 (0.001) |
| Water Saturated, Chlorine Cell Gas | 190 | 0.065 (0.002) |
| Dry Chlorine | 86 | Rapid Attack, Ignition |
Corrosion Data of Titanium Set Screws
Atmospheric exposure: corrosion rate <0.001 mm/y, requiring almost no maintenance.
Natural seawater (ambient temperature, oxygenated, flowing): corrosion rate is nearly zero, with design focus on avoiding crevice corrosion and deposits.
Chemical media: extremely low rates in most chlorides and sulfites (e.g., 6% sulfurous acid at room temperature <0.0005 mm/y).
| Chloride | Concentration % | Temperature °F (°C) | Corrosion Rate mpy (mm/y) |
|---|---|---|---|
| Aluminum chloride | 10 | 212 (100) | 0.09 (0.002) |
| Ammonium chloride | All | 68–212 (20–100) | <0.5 (<0.013) |
| Calcium chloride | 20 | 212 (100) | 0.6 (0.015) |
| Ferric chloride | 1–20 | 70 (21) | Nil |
| Lithium chloride | 50 | 300 (149) | Nil |
| Magnesium chloride | 20 | 212 (100) | 0.4 (0.010) |
| Mercuric chloride | 5 | 212 (100) | 0.42 (0.011) |
| Nickel chloride | 5–20 | 212 (100) | 0.14 (0.004) |
| Potassium chloride | Saturated | 70 (21) | Nil |
| Sodium chloride | 20 | 165 (74) | 0.01 (0.000) |
| Zinc chloride | 75 | 392 (200) | 24 (0.610) |
Comprehensive Titanium Screw Types – All in One Supplier
We offer a complete range of titanium fasteners to meet diverse assembly needs and operating conditions.
Each batch is tested with spectro analysis and thread gauging, with optional non-destructive testing (NDT) to ensure accuracy and reliability.
We support small MOQ orders, fast delivery, worldwide shipping, and secure packaging.
People Also Ask – Titanium Set Screws (FAQ)
What are the disadvantages of titanium screws?
They cost more and are harder to machine, but lighter and corrosion resistant.
What are titanium screws used for?
For aerospace, marine, medical, racing, and precision machinery.
Are titanium screws stronger than steel screws?
Grade 5 titanium is lighter with high strength, but some steels are stronger.
How much do titanium implant screws cost?
They are pricier than stainless steel due to biocompatibility and long life.
What is the difference from regular screws?
Set screws fix shafts by pressure instead of nuts, often hidden or flush.
What is the function of a set screw?
To stop rotation or sliding of shafts, using flat or cone tips.
Can titanium set screws be reused?
Yes, if threads and tips are intact, with lubricant or thread-locker.
What should I pay attention to when using titanium set screws?
Control torque, prevent galling with lubricant, and choose proper tip for shaft.
