High-Performance Fasteners & Wheel Stud Components
Manufactured under strict ISO 9001 and aerospace metallurgical protocols. Cold-forged, precision CNC turned, and hot-rolled to satisfy demanding torque dynamics.
Titanium Bolt M8*20mm 25mm Motorcycle Rear Brake Rotor Screw Burnt Blue
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Bike Motorcycle Titanium Bolts Hexagonal Step Flat Head Zinc Finish Teeth Disc Brake
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Titanium Alloy Bolts Gr5 Anodized Colored Torx Bolts M4 M5 M6*15 Motorcycle Modified Car Shell Titanium Screws
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GR5 Titanium Alloy Standard Bolts in Stock Factory Wholesale Price Ready to Ship Titanium Fastener Bolts and Nuts
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ZFTI Factory Direct Titanium Hex Bolt Full Thread ISO 4018 M8 M10 M12 M14 M16 CNC Machined Plain Finish High Quality
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ZFTI Class 8.8 Gr5 Titanium Flange Bolt Anodized PVD Hex Head UNF Thread CNC Machined Motorcycle Custom Manufacturer
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GR5 Titanium Alloy Anodized Brake Bolts for Motorcycle Modified High Performance Class 10.9 & 12.9
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Anodized High Strength GR5 Titanium Alloy M6*15 Umbrella Head Bolts for Motorcycle Modification
View ProductWhy Parisian Engineers Trust Yevzo Titanium Fasteners
Operating from the global epicenter of non-ferrous metallurgy—Baoji, China—Yevzo Titanium Metal Co., Ltd. blends primary raw material control with advanced CNC turning systems to deliver uncompromised joint integrity.
Primary Baoji Valley Stock
Unlike secondary machine shops, Yevzo secures certified ASTM B348 Grade 5 bar stock directly from verified melting mills in Baoji. Full chemical composition analysis and mechanical tensile test reports accompany every production batch, ensuring complete metallurgical traceability from sponge titanium to wheel studs.
Rolled Threads & Anti-Fatigue Geometry
Our studs and bolts utilize continuous thread rolling rather than single-point cutting. This critical manufacturing process preserves the longitudinal grain flow of Ti-6Al-4V, boosting cyclic fatigue life by more than 350% under extreme cornering loads and high-frequency track vibrations.
Comprehensive PVD & Anodizing
We provide in-house surface conversion, including Type II anodizing, physical vapor deposition (PVD) titanium nitride (gold), and burnt blue finishes. These thin protective layers resist thread galling without interfering with pitch diameter tolerances (6g/6H ISO standards).
Engineering Applications of Titanium Wheel Studs across Greater Paris
From the private tuning garages around Circuit Carole to historic car restoration workshops near Versailles and EV racing teams along the Seine Valley, titanium wheel studs provide an unrivaled strength-to-weight advantage.
| Performance Parameter | Commercial Grade 2 Pure Titanium | Ti-6Al-4V (Grade 5 Annealed / Forged) | OEM Class 10.9 Carbon Steel |
|---|---|---|---|
| Tensile Strength (Rm) | 345 – 450 MPa | 950 – 1050 MPa | 1000 – 1040 MPa |
| Yield Strength (Rp 0.2) | 275 MPa | 880 – 920 MPa | 900 – 940 MPa |
| Density (ρ) | 4.51 g/cm³ | 4.43 g/cm³ | 7.85 g/cm³ |
| Weight Reduction Ratio | -42.5% | -43.6% (Unsprung Mass Saving) | Baseline (Reference) |
| Corrosion Resistance (De-icing Salts) | Immune to pitting & stress crack | Total resistance in NaCl environments | Requires galvanization / Prone to rust |
| Thermal Expansion Coeff. (α) | 8.6 × 10⁻⁶ / K | 8.8 × 10⁻⁶ / K (Matches forged Al wheels) | 11.7 × 10⁻⁶ / K (Risk of thermal looseness) |
Track Day & Racing Applications
French racing series operating near Circuit Carole, Linas-Montlhéry, and regional endurance circuits require rapid wheel swaps. Converting standard European wheel lug bolts to a stud and nut arrangement accelerates pit stops while eliminating hub thread wear. The rotating unsprung weight saving sharpens steering turn-in and throttle response.
High-Performance Electric Mobility (EVs)
Parisian urban transit initiatives and low-emission sports EV converters leverage Gr5 studs to counter heavy battery payloads. The rotational inertia reduction directly enhances regenerative braking efficiency and extends motor dynamic range during demanding urban stop-and-go driving across inner-city boulevards.
Exotic & Bespoke Ateliers
Restoration workshops across Boulogne-Billancourt and Neuilly-sur-Seine service bespoke marques (Bugatti, Alpine, Porsche, Ferrari). Titanium wheel hardware provides an enduring mirror-polished or anodized appearance that will not suffer from unsightly oxidation caused by winter de-icing brine on French autoroutes.
Emerging Procurement Trends in France & the Île-de-France Region
A closer look at regulatory mandates, technological transitions, and logistical efficiencies shaping titanium component procurement across Western Europe.
Tightening Decarbonization & Lightweighting Goals
With Paris leading strict Low Emission Zone (Crit'Air) policies, Tier-1 automotive subcontractors prioritize mass minimization. Every gram shaved at the wheel hub reduces unsprung kinetic energy fourfold compared to static vehicle chassis weight, driving titanium penetration beyond supercars into premium consumer retrofits.
Direct Factory OEM Sourcing
French component distributors are streamlining supply chains by bypassing European trading houses. Sourcing directly from certified Baoji manufacturing facilities guarantees authentic material mill test reports (EN 10204 3.1) and slashes unit acquisition costs by 30% to 50% without compromising aerospace-grade tolerances.
Custom Thread Geometries on Demand
Modern Parisian tuning projects demand custom conversions, such as converting traditional M12x1.5 or M14x1.25 female hubs to extended 75mm-90mm track-spec titanium studs. Flexible, CNC-driven custom turning accommodates small-batch prototype runs without onerous minimum production volumes.
Frequently Asked Questions by Parisian Mechanical Engineers & Buyers
Essential answers regarding material certifications, galling mitigation, torque calculations, and customs import protocol into France.
How does Grade 5 Titanium compare to Class 10.9 steel for track wheel studs?
Grade 5 (Ti-6Al-4V) delivers a minimum tensile strength of 895–950 MPa, matching the clamping capacity of ISO Class 10.9 high-tensile steel fasteners. At the same time, Grade 5 possesses a lower density of 4.43 g/cm³ compared to steel's 7.85 g/cm³, yielding an immediate ~44% weight reduction on rotating unsprung wheel hubs while offering superior fatigue and corrosion endurance.
What anti-seize preparation is required to prevent thread galling on titanium wheel studs?
Titanium naturally forms an adherent passive oxide film. Under dry high-torque tightening, friction can break this film and cause cold-welding or thread galling. We recommend applying a specialized copper-, molybdenum disulfide (MoS2)-, or ceramic-based anti-seize paste to threads and lug nut seats. Lubricated threads lower the friction coefficient, requiring torque to be calibrated accordingly (typically 80% to 85% of dry steel torque specifications).
What documentation and mill test reports (MTR) are provided for French customs clearing?
Every shipment sent to France includes a comprehensive Material Test Report in accordance with EN 10204 3.1. This certificate details heat numbers, chemical composition (spectrometric verification of Ti, Al, V, Fe, C, N, H, O content), tensile yield strength, elongation percentage, and dimensional compliance with 6g pitch tolerances.
What are the standard shipping durations and Incoterms for delivery to the Paris region?
For urgent workshop samples and small custom batches, express air delivery (DHL/FedEx/UPS) from our Baoji factory directly to Paris addresses takes 4 to 7 business days. For bulk container freight, consolidated air cargo or sea freight to Le Havre followed by rail transport into Île-de-France takes between 18 and 30 days under DDP (Delivered Duty Paid), CIF, or FOB terms.
Can you machine non-standard European stud configurations (e.g., M14x1.25 to M14x1.5 bullet nose)?
Yes. Custom conversions represent one of our primary OEM strengths. We engineer dual-thread screw studs (e.g., M14x1.25 hub-side to M14x1.5 wheel-side) equipped with quick-start bullet noses, integrated Allen key drive sockets, and custom lengths from 45mm to 95mm directly from your 2D engineering prints (DWG/PDF) or 3D STEP models.
How does galvanic corrosion risk compare when pairing titanium studs with aluminum wheels?
Titanium is electrochemically noble. When threaded directly into dry cast-iron hubs or aluminum alloy wheel rims exposed to wet, salted winter roads around Paris, mild galvanic couples can theoretically form. However, because our studs are precision-finished and treated with protective anodized micro-coatings, simply applying anti-seize paste effectively insulates the joint and completely halts galvanic corrosion.
End-to-End Five-Stage Fastener Manufacturing Standard
How Yevzo guarantees that every wheel stud and bolt exiting our Baoji facility withstands severe road and track duty.
1. Spectrometric Bar Sorting
Incoming ASTM B348 Grade 5 bars undergo optical emission spectrometry to verify strict elemental boundaries. We ensure interstitial elements such as Oxygen, Hydrogen, and Carbon remain well below aerospace thresholds to avoid material embrittlement.
2. High-Precision CNC Turning
Using multi-axis Swiss-type and turning centers, stud bodies, centering registers, and drive sockets (Torx, hex, or internal drive) are turned in a single clamping setup to maintain concentricity within 0.01mm.
3. Hydro-Pneumatic Thread Rolling
Rather than cutting threads, high-tonnage rolling dies plastically deform the outer fiber surface. This cold-work hardening increases thread surface micro-hardness up to HRC 36-39 and eliminates sharp stress notches at the thread root.
4. Ultrasonic De-Oiling & Anodizing
Fasteners are submerged in multi-stage ultrasonic degreasing tanks to purge all cutting oil residues. Once chemically cleaned, parts receive electro-chemical anodization or PVD physical vapor deposition for maximum surface durability.
5. Optical Sorting & Gauge Audit
Every batch is checked using automated optical profile projectors and hardened go/no-go ring gauges. Pitch diameter, lead angle, flank angles, and under-head radius are verified prior to secure protective packaging.
6. Shockproof Export Packaging
To eliminate shipping thread impact, studs and nuts are packaged in custom-divided honeycomb trays or individual sealed vacuum sleeves before being boxed into reinforced export cartons with moisture desiccant packs.
Request Your Engineering Catalog & Custom Fastener Quote
Whether you require standard M12/M14 wheel stud replacement sets or engineered bespoke racing hardware delivered to Paris, our metallurgical engineers are available to review your technical drawings and provide competitive factory-direct pricing.
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