GRX Grade 5 Titanium Pan Head Brake Disc Screws for Race Motorcycle M6/M8/M10 DIN Thread
Ti-6Al-4V
M6 / M8 / M10
Shear-Resistant
≥895 MPa
Tensile Strength (Gr5)
4.43 g/cm³
44% Weight Reduction vs Steel
±0.005 mm
CNC Machining Tolerance
0.000 mm/yr
Ligurian Seawater Corrosion
Featured Inventory & OEM Specifications
High-Precision Titanium Fastener Portfolio for Genoa Engineering Procurement
Engineered from aerospace-certified Ti-6Al-4V (Grade 5) bar stock in China's Titanium Valley (Baoji), our fasteners deliver unmatched strength-to-weight efficiency, complete pitting corrosion immunity, and tight DIN/ISO tolerances for marine, hyper-bike, and industrial racing assemblies.
Factory M10 CNC 90-Degree Hex Flange Head GR5 Titanium Plain Throttle Brake Clutch Wire Cable Adjuster Parts for Motorcycle
90° Elbow CNC
M10 Pitch
High Tensile
High Quality Gr5 Titanium Cross Dowel Nuts Titanium Adjusters' Knobs Bolt
Cross-Dowel
Bespoke Knurling
±0.005mm
High Strength Customized M31*Super Light Anti-Skid Oil Cap for Motorcycle Custom Production Plants Nut
M31 Fine Pitch
Ultra-Lightweight
Anti-Skid Hex
TKS M6 Anodized Gr5 Titanium Hex Motorcycle Caliper Oil Drain Bolt Screw Metric System
M6 Caliper Drain
Electrolytic Anodize
Fluid-Tight
Tecksr Titanium Alloy Hex Head French-style Closed Flower Nuts Class 10 GR5 Motorcycle Modification Parts Nut
Class 10 Rating
French Closed Cap
Decorative Crown
Custom Torx Shoulder Screw CNC Machined GR5 Titanium Socket Head Decorative Bolt for Motorcycle Bicycle Upgrade
Precision Shoulder
Torx T25/T30
Low Runout
Genoa Industrial Ecosystem White Paper
Engineering Grade 5 Fastening in Ligurian Seawater & Motorsport Environments
A metallurgic analysis of why naval architects, yacht refit yards in the Port of Genoa (Porto Antico, Sestri Ponente), and Northern Italian performance racing programs are rapidly replacing A4/316L stainless steel with Ti-6Al-4V fasteners.
Genoa represents one of the Mediterranean's most demanding maritime, aerospace, and high-performance engineering capitals. From the mega-yacht refit dry docks of the Port of Genoa (Bacino Portuale di Genova) to the specialized marine research labs along the Ligurian coastline, hardware failure induced by harsh marine atmospheres is an intolerable operational and financial risk. While traditional marine fasteners have relied upon austenitic stainless steel (such as AISI 316L or A4-70/A4-80), these materials exhibit pronounced vulnerability to chloride-induced pitting, crevice corrosion in stagnant bilge environments, and stress corrosion cracking (SCC) under cyclic dynamic loads.
As an onsite-verified titanium fastener manufacturer originating from Baoji, China—the globally recognized "Titanium Valley"—Zunvo delivers direct OEM/ODM metallurgical solutions designed to solve these exact Ligurian operational challenges. Titanium Grade 5 (Ti-6Al-4V, Werkstoff 3.7165, UNS R56400) spontaneously generates an instantaneous, self-healing, tenaciously adherent oxide barrier film (TiO&sub2; rutile/anatase passivity) upon exposure to oxygen or moisture. Even when completely submerged in warm, saline Mediterranean currents or subjected to continuous salt-spray winds along the Corso Italia, Grade 5 titanium demonstrates a measured corrosion rate of 0.000 mm per year, rendering premature replacement and galvanic seizing obsolete.
Superyacht & Maxi-Yacht Refit
Overhauling deck winches, furling rigs, hydraulic swim platforms, and composite bulkhead tie-downs in Genoa's refit yards. Gr5 titanium eliminates rust staining on teak decks and white gelcoats while shaving hundreds of kilograms from top-heavy superstructures to optimize vessel center-of-gravity (CG).
Subsea Instrumentation & ROVs
For Ligurian marine robotics, benthic sonar arrays, and subsea acoustic transducers deployed at depths exceeding 2,500 meters in the Ligurian Sea Trench. Titanium's absolute resistance to high-pressure microbiological fouling and seawater immersion guarantees structural integrity without sacrificial zinc anodes.
Racing Motorcycles & Supercars
Northern Italy and the Ligurian mountain road circuits demand instant unsprung mass reduction. Replacing brake rotor fasteners, caliper mounting bolts, and rear swingarm axle nuts with rolled-thread Gr5 titanium yields 44% rotational weight savings, radically improving gyroscope responsiveness and braking heat dissipation.
Data-Driven Metallurgy
Comparative Matrix: Ti-6Al-4V Gr5 vs. Traditional Maritime Alloys
Empirical baseline comparison for mechanical engineers and naval procurement specialists evaluating strength, fatigue limits, and long-term durability in chloride-saturated Ligurian environments.
| Mechanical & Physical Property | Ti-6Al-4V Grade 5 (Zunvo) | AISI 316L (A4-80) Marine Stainless | Inconel 625 Nickel Superalloy | Aluminium 7075-T6 (Ergal) |
|---|---|---|---|---|
| Density (g/cm³) | 4.43 (Optimal Lightweight) | 7.98 (Heavy Tare Weight) | 8.44 (Excessive Weight) | 2.81 (Extremely Light) |
| Tensile Strength Rm (MPa) | ≥ 895 – 1,050 | 800 (Class A4-80 max) | 827 – 1,000 | 570 (Low Shear Margin) |
| Yield Strength Rp0.2 (MPa) | ≥ 828 | 600 | 414 – 550 | 503 |
| Strength-to-Weight Ratio (kN·m/kg) | 202 – 237 (Highest Structural Efficiency) | 100 (Baseline) | 118 (Moderate) | 203 (High, but Pitting Prone) |
| Ligurian Seawater Pitting (PREN) | Immune (Forms Stable TiO&sub2; Passivity) | PREN ~25 (Susceptible to Crevice Attack) | PREN >45 (Excellent Immunity) | Extremely Poor (Severe Galvanic Rot) |
| Magnetic Permeability (μ) | 1.00005 (100% Non-Magnetic) | 1.020 (Cold Work Introduces Magnetism) | 1.0006 (Non-Magnetic) | 1.00000 (Non-Magnetic) |
| Thermal Expansion (×10&supmin;&sup6; / K) | 8.6 (Matches Carbon Fiber Composites) | 16.5 (High CTE Mismatch) | 12.8 (Moderate CTE) | 23.4 (Severe Risk of Joint Loosening) |
Emerging Market Trends
Ligurian Maritime & Advanced Manufacturing Trends Driving Titanium Adoption
1. Carbon Fiber Composite Integration in Genoa Naval Architecture: Contemporary motor yachts and racing catamarans crafted in Ligurian shipyards increasingly utilize pre-preg carbon fiber hulls, spars, and deck structures. Fastening carbon fiber with standard steel or aluminum creates an aggressive galvanic cell due to the massive potential difference (+0.25V for Carbon vs -0.80V for Aluminum). This results in catastrophic galvanic degradation of the metallic hardware. Grade 5 titanium holds a noble galvanic potential nearly identical to carbon fiber (+0.05V to +0.10V), allowing direct structural bolting without non-conductive isolation sleeves, phenolic washers, or sealants that break down over time.
2. Superyacht Decarbonization and Top-Weight Rationalization: As European Union environmental maritime directives mandate lower operational emissions, yacht designers in Genoa are systematically stripping deadweight. Every kilogram saved on superstructures, radar arches, and flybridges compounds stability, enabling reduced ballast requirements, extended cruising range, and optimized diesel-electric battery payloads. Switching high-stress rigging hardware, deck cleats, hydraulic line flanges, and glazing bolts to CNC-machined Grade 5 titanium achieves an immediate 44% weight dividend without compromising structural yield.
3. Precision Additive & 5-Axis Aftermarket Customization: Genoa has emerged as a premier European hub for custom performance engineering. Racing bike fabricators, hypercar tuners, and specialized marine craft builders no longer settle for off-the-shelf catalog fasteners with generic dimensions. The demand has pivoted toward bespoke thread lengths, French-style closed crown heads, hollow-core weight-relieved shanks, captive shoulder washers, and specialized Torx drive architectures that provide clean industrial aesthetics and tamper resistance.
Verified Manufacturing Line
Baoji Production Facility: From Sponge Titanium to Precision Hardware
Explore our full-process manufacturing footprint: certified smelting heat numbers, high-speed multi-axis CNC machining, cold heading, rolled thread forming, and rigorous metallurgical lot tracing.
5-Axis High-Precision CNC Turning
Fatigue-Enhanced Thread Rolling Line
100% Go/No-Go Gauge Quality Inspection
Operational Reliability
Why European & Genoese Engineers Source from Zunvo
Direct factory execution from China's primary titanium cluster paired with international trade competence and engineering documentation.
ADVANTAGE 01
Baoji Titanium Origin
Located in Shaanxi's Titanium Valley, we enjoy immediate proximity to raw sponge smelters and certified vacuum arc remelting (VAR) ingot mills. Every fastener batch is accompanied by an authentic Mill Test Certificate (EN 10204 3.1) with full chemical analysis and mechanical tensile reports traceable to the heat lot number.
ADVANTAGE 02
Rolled Threads, Not Cut
Unlike small machining job shops that machine threads on standard lathes, our fastener threads are formed via precision cylindrical die thread rolling machines. This aligns the metallic grain structure continuously along the thread contour, dramatically improving fatigue life and shear limits in high-vibration engine or rigging mounts.
ADVANTAGE 03
Rapid 3-Day Prototyping
Naval refit deadlines in Genoa allow zero margin for protracted development delays. Provide our engineering desk with an IGES/STEP 3D model, 2D PDF drawing, or physically worn component. Our engineering office delivers complete DFM feedback within 24 hours and ships functional CNC pilot samples in just 3 days.
ADVANTAGE 04
Advanced Surface Coatings
Eliminate fastener galling completely. In addition to high-purity electrolytic color anodizing (Electric Blue, Burned Rainbow, Gold, Violet), we operate physical vapor deposition (PVD) vacuum chambers providing micro-hard Diamond-Like Carbon (DLC) and Titanium Nitride (TiN) anti-friction layers for severe sliding contact.
Procurement Intelligence
Frequently Asked Questions: Sourcing Titanium Fasteners in Genoa
Practical metallurgical, customs, engineering, and anti-galling guidelines compiled by Zunvo's chief technical export engineers.
Can Ti-6Al-4V Grade 5 fasteners directly replace 8.8, 10.9, and 12.9 high-tensile steel bolts in marine & motorsport assemblies?
Grade 5 titanium (minimum tensile strength 895–1,050 MPa, yield strength ≥828 MPa) exceeds the tensile and shear performance of standard Class 8.8 metric steel bolts (800 MPa tensile) while providing a 44% mass reduction. For Class 10.9 locations (1,040 MPa), Grade 5 provides an equivalent direct replacement in 90% of dynamic marine and motorcycle applications. For safety-critical Class 12.9 steel applications (1,220 MPa) subject to extreme shear shocks, our engineering team can modify fastener geometry—such as stepping up the nominal bolt diameter by one metric size (e.g., M8 to M10) or utilizing specialized Ti-6Al-4V ELI (Extra Low Interstitial) cold-headed alloys with work-hardened heads. Always verify torque-tension values using calibrated load cells.
How do we prevent thread galling (seizure) when assembling titanium bolts into titanium or stainless marine fittings in Genoa?
Like all metals with self-passivating oxide barriers, titanium on titanium or titanium on stainless steel can experience micro-welding (galling) under high tightening friction without adequate boundary lubrication. To ensure trouble-free maintenance in the Port of Genoa, we recommend two proven engineering practices: First, specify our factory-applied PVD DLC (Diamond-Like Carbon) or solid MoS&sub2; lubricating coatings, which provide a low-friction barrier (friction coefficient μ < 0.12). Second, when torquing unplated titanium hardware, always apply an aerospace-grade marine anti-seize paste formulated with nickel, copper, or ceramic microspheres (such as Loctite Marine Grade Anti-Seize or Tef-Gel). Avoid raw dry assembly with high-speed pneumatic impact tools.
What certification and non-destructive testing (NDT) documentation is delivered with orders destined for Italy / EU shipyards?
Every shipment exported to Italy conforms to European standards. We provide EN 10204 Type 3.1 Mill Test Certificates (MTC) verifying spectroscopic chemical composition (Fe, V, Al, C, N, H, O, and balance Ti) and mechanical properties (tensile strength, yield strength, percentage elongation, and reduction of area). Furthermore, critical subsea and naval batches can be supplied with Optical Coordinate Measuring Machine (CMM) dimensional inspection reports, Thread Go/No-Go Gauge validation, and 100% Eddy Current or Liquid Penetrant NDT testing to ensure zero subsurface micro-fissures or micro-inclusions.
What is the typical transit schedule, Incoterms, and customs process for delivery into Genoa, Liguria?
We provide comprehensive logistics support under Incoterms 2020 including EXW, FOB (Shanghai/Shenzhen), CIF (Port of Genoa - Vado Ligure/Genova Pra'), and DDP (Delivered Duty Paid directly to your shipyard workshop or facility in Genoa, Rapallo, La Spezia, or Savona). For rapid prototyping and maintenance emergency orders, expedited air courier (DHL Express, FedEx Priority) delivers from our Baoji inspection hub to Genoa Cristoforo Colombo Airport (GOA) within 4 to 6 business days. For volume containerized maritime shipments, direct sea freight reaches the Port of Genoa in approximately 28 to 32 days with complete customs declaration documents, TARIC/HS code classification (7318.15 / 8108.90), and commercial packaging.
What are your Minimum Order Quantities (MOQ) for custom OEM drawings vs standard DIN catalog parts?
We understand that specialized custom marine refits or prototype racing iterations do not begin with tens of thousands of units. For standard catalog hardware (such as DIN 912 socket head screws, DIN 933 hex bolts, ISO 7380 button heads, and standard metric brake disc bolts), our MOQ starts at only 100 to 200 units. For fully customized non-standard hardware manufactured from customer 2D/3D technical drawings (including non-standard pitch, cross-dowel nuts, flanged flower caps, and hollowed racing studs), initial prototype runs start at just 50 to 100 pieces to validate field fitment, with rapid scaling to high-volume production batches of 10,000+ pieces within 7 to 15 production days.
Connect Directly with Our Titanium Fastener Engineering Desk
Whether you require standard DIN 912 socket head screws for immediate stock dispatch or tailored drawing-based Ti-6Al-4V fasteners for an upcoming superyacht refit in Genoa, our metallurgists provide immediate CAD reviews and pricing within 7 hours.
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