Gr5 Alloy
Anodized High Strength GR5 Titanium M6*15 Umbrella Head Bolts
- Standard: Custom / Modification
- Tensile: 895–1000 MPa
- MOQ: 20 pcs
Precision Catalog
Specialized Titanium Grub Screws & High-Tensile Fasteners
Explore standard DIN-spec configurations and bespoke precision-machined titanium fasteners engineered for motorsport, micro-mechanics, and aggressive corrosion environments.
DIN 933
Wholesale CNC Titanium Flange Hex Nut M4–M10 Class 8.8
- Class: Class 8.8 / 10.9
- Tolerance: 6H Thread Standard
- Finish: Plain Machined / Deburred
DIN 7991
Titanium DIN 7991 Countersunk Flat Head Screws M3–M5
- Type: Flat Countersunk Socket
- Material: Gr5 Ti-6Al-4V
- Inventory: In-Stock Ready
Anodized
Anodized Rainbow GR5 Titanium Flange Head Allen Bolts
- Treatment: Type II Anodizing
- Weight Save: -44% vs. Carbon Steel
- Application: Chassis & Drivetrain
DIN 912
DIN 912 Titanium Hexagon Socket Cap Screws M0.8–M24
- Range: Micro to Heavy (M0.8–M24)
- Process: CNC Swiss & Multi-Axis
- Proof Stress: ≥ 828 MPa
High Load
High-Performance Gr5 Titanium Caliper & Brake Rotor Bolts
- Grade Level: Class 10.9 & 12.9 Equiv.
- Fatigue Life: Critical Cycle Tested
- Corrosion: Zero Rust in Saline
ISO 4018
Full-Thread Titanium Hex Head Fastener ISO 4018 M8–M16
- Thread: Full Pitch Form Ground
- Origin: Baoji In-House Mill Bar
- Incoterms: FOB, CIF, DDP, EXW
Custom Fairing
Large Cap Hex Head Titanium Screws Plain & Color Anodized
- Socket: Precision Hex Recess
- Colors: Burnt Gold, Blue, Violet
- Service: OEM / ODM Direct
Technical Engineering Whitepaper
Engineering Superiority: Titanium Grub Screws (Set Screws) in Demanding Assemblies
A metallurgical and procurement analysis on headless fastener technology across aerospace, downhole tooling, high-frequency robotics, and performance marine subsystems.
Grub screws—often classified in mechanical catalogs as blind set screws, headless drive pins, or locating screws—are unique structural components engineered to generate secure frictional and mechanical interlocks without the physical presence of a protruding bearing head. When manufactured from standard alloy or carbon steel, grub screws are consistently subject to galling, environmental stress cracking, and structural oxidation. Transitioning to certified Grade 5 (Ti-6Al-4V / ASTM B348) and commercially pure Grade 2 titanium grub screws delivers decisive advantages for precision positioning, rotating mass mitigation, and non-magnetic instrumentation.
1. Advanced Metallurgy & Mechanical Performance Matrices
The choice between Titanium Grade 2 and Grade 5 depends on the specific operational stresses of your mechanical joint. CP Grade 2 provides an unyielding barrier against chloride stress corrosion and chemical aggression, making it the material of choice for biomedical housings and marine transducers. For assemblies subject to heavy static preload, shock loads, or high centrifugal forces, Grade 5 (Ti-6Al-4V) offers an ultimate tensile strength exceeding 895 MPa, outperforming Class 8.8 steel while delivering a 44% mass reduction.
| Property Matrix | Grade 2 (UNS R50400) | Grade 5 (Ti-6Al-4V, UNS R56400) | AISI 316 Stainless Steel | Alloy Steel 10.9 (Ref.) |
|---|---|---|---|---|
| Density (ρ) | 4.51 g/cm³ | 4.43 g/cm³ | 8.00 g/cm³ | 7.85 g/cm³ |
| Minimum Tensile Strength | 345 MPa | 895–1000 MPa | 580 MPa | 1040 MPa |
| 0.2% Yield Strength | 275 MPa | 828 MPa | 290 MPa | 940 MPa |
| Modulus of Elasticity (E) | 103 GPa | 114 GPa | 193 GPa | 210 GPa |
| Magnetic Permeability (μ) | 1.00005 (Non-Mag) | 1.00005 (Non-Mag) | ≈ 1.008 (Slight Mag Work) | Ferromagnetic |
| Operating Temp Range | -250°C to +315°C | -250°C to +400°C | -196°C to +550°C | -40°C to +200°C |
2. Precision Point Geometries & Functional Set Mechanics
Because grub screws rely entirely on end-contact friction and surface deformation, point geometry dictates joint integrity. As an OEM/ODM supplier, Yevzo machines each tip configuration to micron-accurate dimensions across standard and custom thread standards:
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DIN 913 / Flat Point
Features a machined, flat surface designed to seat against ground shaft flats, keyways, or electrical contacts without marring mating hardware. Widely selected for delicate instrumentation adjustments and modular positioning rings.
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DIN 914 / Cone Point
Engineered with a 90° or 120° conical tip that penetrates counterbored depressions or localized detents. Delivers the absolute highest mechanical hold against extreme axial and torsional slippage.
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DIN 915 / Dog & Half-Dog Point
Equipped with a protruding cylindrical pilot stud that drops cleanly into a drilled locating hole or linear spline shaft. Prevents shaft displacement without causing surface damage, functioning as a semi-permanent locating dowel.
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DIN 916 / Cup Point
Features a specialized annular rim edge that bites directly into hardened or unhardened shafts upon final torqueing. This is the industry-standard choice for high-speed pulleys, sprockets, motor couplings, and drive hubs.
Precision CNC internal drive broaching is critical. Under high clamping torque, inferior titanium set screws suffer from internal socket rounding. Our production cells leverage hardened cold-punch broaching and micro-milling for hex socket and Torx (Star) internal drives (T5 through T45), ensuring high torque transfer without drive failure.
Market Foresight
Emerging Procurement & Technological Trends
Strategic analysis of shifting global manufacturing parameters impacting non-ferrous fastening components through 2030.
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Additive & Subtractive Hybrid Integration
As 3D metal printing becomes widespread in aerospace brackets and robotics end-effectors, post-machined titanium grub screws are increasingly preferred for securing lightweight additively manufactured nodes, eliminating galvanic corrosion across mating faces.
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Micron-Level Swiss CNC Specialization
Optical assemblies, surgical devices, and robotic exoskeletons are shifting demand toward ultra-small fastener configurations from M0.8 up to M3.0. Swiss lathe tooling guarantees concentricity tolerances within ±0.005mm for vibration-free micro-locating.
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Tribological PVD & Anti-Galling Thin Films
Traditional anti-seize paste introduces contamination risks in optical cleanrooms and vacuum environments. Procurement teams are specifying Diamond-Like Carbon (DLC) and Titanium Nitride (TiN) physical vapor deposition films to eliminate galling while maintaining cleanroom compliance.
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Near-Source Supply Chain Traceability
Global supply chain disruptions make heat-lot traceability directly to sponge titanium smelting a key requirement. Buyers are cutting non-integrated middlemen, working directly with suppliers based in Baoji's Titanium Valley who hold primary ingot documentation.
Manufacturing Authority
Why Partner with Yevzo Titanium Metal Co., Ltd.?
Rooted in China's Titanium Valley, Baoji, since 2013: Fully verified, vertically integrated titanium manufacturing delivering uncompromised quality.
2013
Established Year
100+
CNC Machining Centers
1000+
Technical & Production Staff
5.0 / 5.0
Verified Buyer Satisfaction
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Deep Baoji Industrial Integration
Situated within the Honeycomb Industrial Park, Fenghuang 3rd Road, Baoji High-Tech Zone, our plant operates at the center of the world's dense non-ferrous metal cluster. Raw ASTM B348 stock is secured directly with minimal transit overhead and verified mill heat certifications.
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Third-Party Onsite-Verified Facility
Our operational capabilities, CNC turning capacity, and enterprise status have been independently assessed and onsite-checked by third-party inspection agencies, giving foreign procurement directors complete peace of mind.
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End-to-End Production & Strict QC
Every step—raw bar cutting, precision Swiss turning, socket broaching, multi-stage ultrasonic degreasing, and optical thread-pitch analysis—is executed under strict quality systems. Go/No-Go thread plug gauges (6g/6h tolerance) are run on every production batch.
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Flexible Global Commercial Logistics
We serve North America, Northern Europe, East Asia, and South Asia. Our trade operations support FOB, CIF, CFR, DDP, and EXW with payments across T/T, L/C, PayPal, and major trade assurances in USD, EUR, GBP, JPY, and CHF.
Procurement Intelligence
Frequently Asked Questions on Titanium Grub Screws Sourcing
Direct technical answers from our engineering and export departments to clarify tolerances, plating, MOQ, and galling prevention.
What thread pitch standards and micro-tolerances can Yevzo achieve on titanium grub screws?
Our Swiss-type CNC centers and automated thread-grinding machines produce metric threads from M0.8 up to M24 with Class 6g and 4h tolerances, as well as UNC, UNF, and UNEF thread series adhering to ASME B1.1 Class 2A and 3A. For mission-critical optical and defense assemblies, we routinely hit outer-diameter and pitch diameter runout tolerances under ±0.005mm.
How can engineers prevent galling when installing titanium set screws into titanium or aluminum blocks?
Titanium's natural titanium oxide surface film can friction-weld against mating internal threads under high point loads—a phenomenon known as galling or cold welding. To prevent this, apply anti-seize pastes based on molybdenum disulfide (MoS2) or nickel. Alternatively, we can supply screws with micro-thin DLC (Diamond-Like Carbon) coatings, solid lubricant dry films, or Type II hard anodizing, all of which substantially reduce friction coefficients and eliminate the need for liquid lubricants.
What is the minimum order quantity (MOQ) for custom-engineered or custom-length grub screws?
For standard stocked items (such as DIN 913, 914, and 916 in common M3–M8 sizes), our MOQ starts at just 20 to 50 pieces for testing and evaluation. For bespoke drawings requiring non-standard lengths, unique dog-point diameters, or specialized Torx Plus drives, standard production runs typically start at 100 to 200 pieces, supported by full PPAP and dimensional sample approval.
Does anodizing titanium grub screws affect thread clearances or tip dimensions?
No. Unlike heavy chemical plating, electroplating, or powder coating, decorative and Type II titanium anodizing is an electrolytic oxidation process that creates a thin oxide layer (typically 10 to 200 nanometers thick). This microscopic layer produces vibrant colors—such as burnt rainbow, royal blue, gold, and violet—without altering pitch diameter or interfering with Go/No-Go thread gauge fit.
What material test documentation and mill certifications accompany export shipments?
Every production batch ships with complete EN 10204 3.1 Material Test Reports (MTRs) detailing chemical composition (percentages of C, Fe, N, O, H, V, Al, and Ti balance) and mechanical testing results (tensile, yield, and elongation). On request, we also provide third-party metallurgical reports and optical coordinate measuring machine (CMM) inspection data.
Which Incoterms and international currency settlements are supported?
We work under standard international commercial terms including EXW, FOB (Shanghai/Tianjin/Shenzhen), CFR, CIF, FCA, CPT, and door-to-door DDP with customs duties prepaid. Flexible payment structures include T/T, Letter of Credit (L/C at sight), PayPal, Escrow, and Western Union in major currencies: USD, EUR, GBP, JPY, AUD, CAD, and CNY.
Ready to Engineer Your Titanium Grub Screws Solution?
Submit your 2D/3D CAD drawings (PDF, STEP, DWG) or specification requirements. Our metallurgical engineers will review your request and return a manufacturing quote within 12 business hours.
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