ZFTI High Strength GR5 Plain Finish Titanium Flange Bolt M4-M10
CNC precision machined, ISO 9001 certified, integral load flange.
Engineered Titanium Sprocket & Chassis Fasteners
Direct manufacturer supply from Baoji "Titanium Valley" to French tier-1 distributors, race engineering shops, and precision aftermarket manufacturers.
Titanium Alloy Gr5 M12 M14-1.5x30 Hex Lug Bolts Plain Finish
Tensile class equivalent to Class 10.9/8.8 steel, rolled threads.
GR5 Titanium Wheel Lug Bolts Lightweight Flat Head UNC
High-shear fatigue capacity for motorsport and wheel conversions.
Titanium Torx Head Motorcycle Bolt Gr5 PVD Coated Star Screw
T-Drive profile prevents cam-out under rapid pneumatic torquing.
DIN912 M6 Burnt Blue Titanium Socket Head Cap Screw
Anodized / PVD finish, optimized for light electric e-drive sprockets.
Titanium Large Cap Head Hex Screws Anodized/Plain Finish
Broad bearing surface preventing localized compression on composite hubs.
Anodized High Strength GR5 Titanium M6*15 Umbrella Head
Low profile aerodynamic head configuration for tight clearance zones.
Gr5 Ti-6Al-4V Flange Bolts for Motorcycles M6 M8 M22
Direct hub sprocket mounting studs; available with threadlock integration.
950+ MPa
Tensile Strength (Rm)
4.43 g/cm³
Density (45% Weight Saving)
±0.01 mm
CNC Machining Tolerance
100%
Ultrasonic Bar Inspected
Information Gain: Mechanics of Titanium Sprocket Fastening
Sprocket carriers and rear drives in performance powertrains encounter intense, cyclical pulse stress. Every throttle snap delivers rotational shock across the chain pitch directly onto the drive bolts. Traditional Class 8.8 or 10.9 steel fasteners, while ductile, impose unnecessary unsprung rotating mass, creating rotational inertia that penalizes suspension rebound kinetics and throttle response.
By engineering our Grade 5 Ti-6Al-4V (UNS R56400) sprocket bolts with cold-rolled threads rather than cut threads, Yevzo preserves the metallurgical grain continuous flow along the root radius. This reduces notch-sensitivity stress concentrations by over 38% under high-frequency load reversal cycles. Designed strictly in alignment with ASTM B348 and aerospace DIN standards, our titanium sprocket bolts ensure unmatched tensile stability in track, endurance, and harsh rally environments across metropolitan and regional France.
Furthermore, our advanced physical vapor deposition (PVD) and micro-arc anodization techniques eliminate interfacial micro-movement fretting. When paired with high-temperature molybdenum-disulfide or nickel-based anti-seize lubricants, Yevzo titanium fasteners eliminate cold welding and thread galling against billet aluminum sprocket carriers.
| Mechanical Metric | Ti-6Al-4V (Grade 5) | OEM Steel (10.9) |
|---|---|---|
| Tensile Strength (Min) | 895 - 1000 MPa | 1040 MPa |
| Yield Strength (0.2%) | 828 MPa | 940 MPa |
| Density | 4.43 g/cm³ | 7.85 g/cm³ |
| Modulus of Elasticity | 114 GPa | 210 GPa |
| Corrosion Rate (Salt Spray) | Zero (Passivated) | Surface Oxidation |
| Rotational Mass Reduction | -43.5% | Baseline (0%) |
Localized Engineering Applications across France
From the world-renowned 24 Heures Motos at Le Mans to rigorous Alpine downhill e-bike operations, our titanium sprocket fasteners meet strict performance thresholds.
FIM Endurance & FSBK Racing
French endurance racing (Bol d’Or, Circuit Bugatti) demands sustained structural endurance. High wheel rotation speeds cause massive thermal spikes. Yevzo Grade 5 drilled sprocket bolts allow lock-wire safety rigging, remaining immune to thermal relaxation up to 400°C under severe exhaust proximity and rear-axle friction.
High-Performance E-Mobility (Auvergne-Rhône-Alpes)
France is rapidly leading Europe's premium e-bike and electric trials sector. High instantaneous electric torque peaks place intense shear force on mid-drive and rear hub sprockets. Our CNC titanium DIN912 and flange screws deliver high clamp-load ratios while removing grams from hub rotation assemblies.
Vintage Restoration & Custom Workshops (Île-de-France)
Parisian custom workshops and French vintage moto clubs (restoring classic endurance machines from Gitane, Motobécane, Voxan, and contemporary customs) select our PVD anodized gold and burnt-blue titanium hardware to achieve pristine custom aesthetics with zero atmospheric pitting.
French Procurement Trends: Automotive & Fastener Regulations
A strategic breakdown of emerging supply chain dynamics, decarbonization directives, and regulatory standards within the French industrial fasteners sector.
Decarbonization & Lightweighting
With French environmental tax schemes penalizing excessive vehicle curb weights, hypercar, OEM, and racing developers prioritize rotational mass minimization. Titanium sprocket bolts represent one of the most cost-effective rotating mass reductions, delivering immediate gains in handling dynamics and energy efficiency.
REACH & RoHS Surface Directives
France strictly enforces European REACH chemical regulations, systematically phasing out hexavalent chromium (Cr6+) plating on conventional fasteners. Yevzo's mechanical polishing and eco-compliant anodizing/PVD methods eliminate toxic electrolytic baths, ensuring fully compliant supply chains for French importers.
Direct-from-Source Traceability
French B2B engineering buyers have transitioned from intermediaries toward qualified direct-from-source relationships with Baoji manufacturing plants. Mill Test Certificates (EN 10204 3.1) and lot-controlled chemical-composition tracing have become non-negotiable procurement prerequisites.
Why French Importers Choose Yevzo Titanium
Operating since 2013 in Baoji, China's Titanium Valley, Yevzo Titanium Metal Co., Ltd. blends vertically integrated material sourcing with rigorous international export standards.
Titanium Valley Sourcing
Direct proximity to domestic titanium sponge and smelting plants ensures 100% pure Gr5 stock with full heat-number traceability directly to the melt ingot.
100+ Advanced CNC Units
Equipped with 3-axis, 4-axis, and multi-spindle automatic turning centers holding tolerances under ±0.01 mm on hex flanges and thread pitches.
Strict Metrology Inspection
100% thread ring gauge inspection, profile projector contour analysis, and ultrasonic flaw testing before packaging to avoid site returns.
DDP Delivery to France
Comprehensive Incoterms support (DDP, CIF, FOB, Express) delivering cleared shipments directly to Paris, Lyon, Marseille, or Bordeaux distribution hubs.
CNC Production Facility
High-Speed Precision Milling
Certified Bar Stock Storage
Quality Control Metrology
Frequently Asked Sourcing Questions: French Buyers
Expert engineering insights covering bolt sizing, galvanic isolation, French customs tariffs, and torque calculations.
What torque specifications should be applied to titanium sprocket bolts?
Because Grade 5 titanium has a different modulus of elasticity (114 GPa) than steel (210 GPa), tightening torques must be tuned. Generally, apply approximately 75% to 80% of standard OEM steel torque specs when dry, or 65% to 70% when utilizing an anti-seize paste. We supply recommended torque curves tailored to your bolt size and thread pitch.
How do you resolve galvanic corrosion when mounting to aluminum carriers?
Titanium paired directly with 6061-T6 or 7075-T6 aluminum in the presence of an electrolyte (such as road salt or rainwater in northern France) can induce minor galvanic potential. We resolve this by providing thin isolating washers or advising the application of an anti-seize paste with copper/aluminum inhibitors or PVD barrier coats, halting electrolytic transfer.
What are the French customs tariffs (TARIC) & VAT requirements?
Titanium bolts exported to France generally clear under TARIC code 8108.90 or 7318 (fasteners). Under our DDP (Delivered Duty Paid) terms, Yevzo coordinates all import customs declarations, customs duties, and French TVA (20%), delivering shipments directly to your company doors with no unexpected brokerage delays.
Can you provide custom dimensions according to 2D/3D technical drawings?
Yes. Over 40% of our production volume consists of drawing-based parts (OEM/ODM). We work with STEP, IGES, DXF, or PDF engineering prints. We accommodate custom flange counterbores, integrated safety wire lock-holes, self-locking nylon ring grooves, and bespoke laser etched logos.
Accelerate Your Supply Chain With Certified Titanium Fasteners
Whether you need low-volume race prototypes or high-volume series manufacturing for French distribution, our engineering team responds with complete dimensional proposals, MTRs, and freight quotes within 24 hours.
ISO 9001 Compliant • Mill Test Certificate (EN 10204 3.1) • DDP France Delivery